chore: upgrade i18next 26, prettier 3, fontsource-variable, domhandler 6, lint-staged 17

- i18next 23->26 + react-i18next 15->17
- prettier 2->3, reformat all files
- replace @fontsource/inter with @fontsource-variable/inter 5, update import path
- domhandler 5->6 (aligns with transitive deps)
- lint-staged 16->17

src/app/components/image-pack-view/RoomImagePack.tsx

@@ -32,7 +32,7 @@ export function RoomImagePack({ room, stateKey }: RoomImagePackProps) {
       {
         roomId: room.roomId,
         stateKey,
-      }
+      },
     );
   }, [room.roomId, stateKey]);
   const imagePack = useRoomImagePack(room, stateKey) ?? fallbackPack;
@@ -46,10 +46,10 @@ export function RoomImagePack({ room, stateKey }: RoomImagePackProps) {
         address.roomId,
         StateEvent.PoniesRoomEmotes,
         packContent,
-        address.stateKey
+        address.stateKey,
       );
     },
-    [mx, imagePack]
+    [mx, imagePack],
   );
 
   return (