fix(receipt-import): correct Swedish labels for packaging quantity and count

flutter/lib/features/import/presentation/receipt_import_tab.dart

@@ -679,7 +679,7 @@ class _EditDialogState extends State<_EditDialog> {
                     controller: _quantityCtrl,
                     keyboardType: const TextInputType.numberWithOptions(decimal: true),
                     decoration: const InputDecoration(
-                      labelText: 'Mangd per forpackning',
+                      labelText: 'Mängd per förpackning',
                       border: OutlineInputBorder(),
                     ),
                     onChanged: (_) => setState(() {}),
@@ -702,7 +702,7 @@ class _EditDialogState extends State<_EditDialog> {
                 controller: _packageCountCtrl,
                 keyboardType: const TextInputType.numberWithOptions(decimal: true),
                 decoration: const InputDecoration(
-                  labelText: 'Antal forpackningar',
+                  labelText: 'Antal förpackningar',
                   border: OutlineInputBorder(),
                 ),
                 onChanged: (_) => setState(() {}),
@@ -719,7 +719,7 @@ class _EditDialogState extends State<_EditDialog> {
                   ),
                   child: Text(
                     'Totalt: ${_formatSwedishNumber(totalPreview)} $currentUnit '
-                    '(mangd x antal forpackningar).',
+                    '(mängd x antal förpackningar).',
                     style: theme.textTheme.bodySmall?.copyWith(
                       color: Colors.green.shade800,
                     ),