feat: update technical documentation and remove unnecessary logout icon from profile screen

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

@@ -22,6 +22,11 @@ class RecipeDetailScreen extends ConsumerWidget {
     return Scaffold(
       appBar: AppBar(
         title: Text(recipeAsync.maybeWhen(data: (d) => d, orElse: () => null)?.title ?? 'Recept'),
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () => context.go('/recipes'),
+          tooltip: 'Tillbaka till receptlistan',
+        ),
         actions: recipeAsync.maybeWhen(data: (d) => d, orElse: () => null) == null
             ? []
             : [
@@ -40,7 +45,28 @@ class RecipeDetailScreen extends ConsumerWidget {
           message: mapErrorToUserMessage(error, context),
           onRetry: () => ref.invalidate(recipeDetailProvider(recipeId)),
         ),
-        data: (recipe) => _RecipeBody(recipe: recipe),
+        data: (recipe) => Stack(
+          children: [
+            if (recipe.imageUrl != null)
+              SizedBox(
+                height: MediaQuery.of(context).size.height * 2 / 3,
+                child: Image.network(
+                  recipe.imageUrl!,
+                  fit: BoxFit.cover,
+                  width: double.infinity,
+                  alignment: Alignment.topCenter,
+                ),
+              ),
+            SingleChildScrollView(
+              child: Column(
+                children: [
+                  SizedBox(height: MediaQuery.of(context).size.height * 2 / 3),
+                  _RecipeBody(recipe: recipe),
+                ],
+              ),
+            ),
+          ],
+        ),
       ),
     );
   }