Add Swedish localization for various app actions and inventory management strings

flutter/lib/features/recipes/presentation/recipe_edit_screen.dart

@@ -7,6 +7,7 @@ import '../../../core/api/api_exception.dart';
 import '../../../core/api/api_paths.dart';
 import '../../../core/api/api_providers.dart';
 import '../../../core/forms/form_options.dart';
+import '../../../core/l10n/l10n.dart';
 import '../../../core/ui/async_state_views.dart';
 import '../../auth/data/auth_providers.dart';
 import '../data/recipe_providers.dart';
@@ -152,20 +153,20 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
 
   String? _validateIngredients() {
     if (_ingredients.isEmpty) {
-      return 'Minst en ingrediens krävs.';
+      return context.l10n.recipeEditMinIngredients;
     }
     for (final ingredient in _ingredients) {
       if (ingredient.productId == null) {
-        return 'Välj produkt för alla ingredienser.';
+        return context.l10n.recipeEditSelectProduct;
       }
       final quantity = double.tryParse(
         ingredient.quantityCtrl.text.trim().replaceAll(',', '.'),
       );
       if (quantity == null || quantity < 0) {
-        return 'Ange giltig mängd för alla ingredienser.';
+        return context.l10n.recipeEditValidQuantity;
       }
       if (ingredient.unit.trim().isEmpty) {
-        return 'Välj enhet för alla ingredienser.';
+        return context.l10n.recipeEditSelectUnit;
       }
     }
     return null;
@@ -237,7 +238,7 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Redigera recept'),
+        title: Text(context.l10n.recipeEditTitle),
         actions: [
           if (_initialized)
             TextButton(
@@ -248,12 +249,12 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
                       width: 16,
                       child: CircularProgressIndicator(strokeWidth: 2),
                     )
-                  : const Text('Spara'),
+                  : Text(context.l10n.saveAction),
             ),
         ],
       ),
       body: recipeAsync.when(
-        loading: () => const LoadingStateView(label: 'Laddar recept...'),
+        loading: () => LoadingStateView(label: context.l10n.recipeDetailLoading),
         error: (error, _) => ErrorStateView(
           message: mapErrorToUserMessage(error, context),
           onRetry: () => ref.invalidate(recipeDetailProvider(widget.recipeId)),
@@ -276,27 +277,27 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
           children: [
             TextFormField(
               controller: _nameCtrl,
-              decoration: const InputDecoration(labelText: 'Receptnamn'),
+              decoration: InputDecoration(labelText: context.l10n.recipeEditNameLabel),
               validator: (v) =>
-                  (v == null || v.trim().isEmpty) ? 'Ange ett receptnamn.' : null,
+                  (v == null || v.trim().isEmpty) ? context.l10n.recipeEditNameRequired : null,
             ),
             const SizedBox(height: 16),
             TextFormField(
               controller: _descCtrl,
               decoration:
-                  const InputDecoration(labelText: 'Beskrivning (valfritt)'),
+                  InputDecoration(labelText: context.l10n.recipeEditDescriptionLabel),
               maxLines: 3,
             ),
             const SizedBox(height: 16),
             TextFormField(
               controller: _servingsCtrl,
               decoration:
-                  const InputDecoration(labelText: 'Antal portioner (valfritt)'),
+                  InputDecoration(labelText: context.l10n.recipeEditServingsLabel),
               keyboardType: TextInputType.number,
               validator: (v) {
                 if (v == null || v.trim().isEmpty) return null;
                 if (int.tryParse(v.trim()) == null) {
-                  return 'Ange ett heltal.';
+                  return context.l10n.recipeEditServingsInvalid;
                 }
                 return null;
               },
@@ -305,7 +306,7 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
             TextFormField(
               controller: _instructionsCtrl,
               decoration:
-                  const InputDecoration(labelText: 'Tillvägagångssätt (valfritt)'),
+                  InputDecoration(labelText: context.l10n.recipeEditInstructionsLabel),
               maxLines: 10,
               textAlignVertical: TextAlignVertical.top,
             ),
@@ -314,20 +315,20 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
               children: [
                 Expanded(
                   child: Text(
-                    'Ingredienser',
+                    context.l10n.recipeEditIngredientsLabel,
                     style: Theme.of(context).textTheme.titleMedium,
                   ),
                 ),
                 OutlinedButton.icon(
                   onPressed: _isSaving ? null : _addIngredient,
                   icon: const Icon(Icons.add),
-                  label: const Text('Lägg till'),
+                  label: Text(context.l10n.addAction),
                 ),
               ],
             ),
             const SizedBox(height: 8),
             Text(
-              'Välj produkt, mängd och enhet för varje ingrediens.',
+              context.l10n.recipeEditIngredientsHint,
               style: Theme.of(context).textTheme.bodySmall?.copyWith(
                   color: Theme.of(context).colorScheme.onSurfaceVariant),
             ),
@@ -338,10 +339,10 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
                 child: LinearProgressIndicator(),
               ),
             if (_ingredients.isEmpty)
-              const Card(
+              Card(
                 child: Padding(
-                  padding: EdgeInsets.all(16),
-                  child: Text('Inga ingredienser tillagda än.'),
+                  padding: const EdgeInsets.all(16),
+                  child: Text(context.l10n.recipeEditNoIngredients),
                 ),
               ),
             ...List.generate(
@@ -366,7 +367,7 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
                       width: 18,
                       child: CircularProgressIndicator(strokeWidth: 2),
                     )
-                  : const Text('Spara ändringar'),
+                  : Text(context.l10n.recipeEditSaveChanges),
             ),
             const SizedBox(height: 40),
           ],
@@ -387,14 +388,14 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
               children: [
                 Expanded(
                   child: Text(
-                    'Ingrediens ${index + 1}',
+                    '${context.l10n.recipeEditIngredientPrefix}${index + 1}',
                     style: Theme.of(context).textTheme.titleSmall,
                   ),
                 ),
                 IconButton(
                   onPressed: _isSaving ? null : () => _removeIngredient(index),
                   icon: const Icon(Icons.delete_outline),
-                  tooltip: 'Ta bort ingrediens',
+                  tooltip: context.l10n.recipeEditRemoveIngredient,
                 ),
               ],
             ),
@@ -440,19 +441,19 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
                 Expanded(
                   child: TextFormField(
                     controller: ingredient.quantityCtrl,
-                    decoration: const InputDecoration(
-                      labelText: 'Mängd *',
-                      border: OutlineInputBorder(),
+                    decoration: InputDecoration(
+                      labelText: context.l10n.quantityLabel,
+                      border: const OutlineInputBorder(),
                     ),
                     keyboardType:
                         const TextInputType.numberWithOptions(decimal: true),
                     validator: (value) {
                       if (value == null || value.trim().isEmpty) {
-                        return 'Ange mängd';
+                        return context.l10n.quantityHint;
                       }
                       if (double.tryParse(value.trim().replaceAll(',', '.')) ==
                           null) {
-                        return 'Ogiltigt tal';
+                        return context.l10n.invalidNumber;
                       }
                       return null;
                     },
@@ -463,9 +464,9 @@ class _RecipeEditScreenState extends ConsumerState<RecipeEditScreen> {
                   child: DropdownButtonFormField<String>(
                     initialValue: ingredient.unit.trim().isEmpty ? null : ingredient.unit,
                     isExpanded: true,
-                    decoration: const InputDecoration(
-                      labelText: 'Enhet *',
-                      border: OutlineInputBorder(),
+                    decoration: InputDecoration(
+                      labelText: context.l10n.unitLabel,
+                      border: const OutlineInputBorder(),
                     ),
                     items: unitOptions
                         .map(