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/ipc/character.ipc.ts

@@ -74,4 +74,15 @@ ipcMain.handle('db:character:update', createHandler<UpdateCharacterData, boolean
             return Character.updateCharacter(userId, data.character, lang);
         }
     )
+);
+
+// DELETE /character/delete - Delete character
+interface DeleteCharacterData {
+    characterId: string;
+}
+ipcMain.handle('db:character:delete', createHandler<DeleteCharacterData, boolean>(
+        function(userId: string, data: DeleteCharacterData, lang: 'fr' | 'en'): boolean {
+            return Character.deleteCharacter(userId, data.characterId, lang);
+        }
+    )
 );