Add character deletion functionality with confirmation workflow

- Added `handleDeleteCharacter` method to handle character deletion with confirmation prompts.
- Updated `CharacterComponent` and `CharacterDetail` to include delete button and related logic.
- Localized new strings for character deletion (e.g., confirmation prompts, success/error messages).
- Enhanced database repository methods (`deleteCharacter`) to handle character deletion securely.
- Improved synchronization workflows to accommodate character deletion.

electron/database/models/Character.ts

@@ -211,6 +211,17 @@ export default class Character {
         return CharacterRepo.deleteAttribute(userId, attributeId, lang);
     }
 
+    /**
+     * Deletes a character and all its related data.
+     * @param userId - The unique identifier of the user
+     * @param characterId - The unique identifier of the character to delete
+     * @param lang - The language code for localization (defaults to 'fr')
+     * @returns True if the deletion was successful
+     */
+    static deleteCharacter(userId: string, characterId: string, lang: 'fr' | 'en' = 'fr'): boolean {
+        return CharacterRepo.deleteCharacter(userId, characterId, lang);
+    }
+
     /**
      * Retrieves all attributes for a specific character, grouped by type.
      * Decrypts attribute data using the user's encryption key.