feat: Batch-Edit Übersetzungen hinzugefügt

- Englische und deutsche Übersetzungen für alle Batch-Edit-Funktionen
- Keys für Toolbar, Buttons, Meldungen und Fehlerbehandlung
- Unterstützt Genre/Special Toggle, Artist-Änderung und Exclude Global

messages/en.json

@@ -252,7 +252,27 @@
       "archiveComment": "Archive",
       "archiveCommentConfirm": "Do you really want to archive this comment?",
       "archiveCommentError": "Error archiving comment.",
-      "newComments": "new"
+      "newComments": "new",
+      "batchEditTitle": "Batch Edit",
+      "clearSelection": "Clear Selection",
+      "batchToggleGenres": "Toggle Genres",
+      "batchToggleSpecials": "Toggle Specials",
+      "batchChangeArtist": "Change Artist",
+      "batchArtistPlaceholder": "Enter new artist name",
+      "batchExcludeGlobal": "Exclude from Global",
+      "batchNoChange": "No change",
+      "batchExclude": "Exclude",
+      "batchInclude": "Include",
+      "batchUpdating": "Updating...",
+      "batchApply": "Apply Changes",
+      "selectAll": "Select all",
+      "selectSong": "Select song",
+      "cannotEditSong": "Cannot edit this song",
+      "noSongsSelected": "No songs selected",
+      "noBatchOperations": "No batch operations specified",
+      "batchUpdateSuccess": "Successfully updated {success} of {processed} songs",
+      "batchUpdateError": "Error: {error}",
+      "batchUpdateNetworkError": "Network error during batch update"
     },
   "About": {
     "title": "About Hördle & Imprint",