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/features/room/jump-to-time/JumpToTime.tsx

@@ -73,8 +73,8 @@ export function JumpToTime({ onCancel, onSubmit }: JumpToTimeProps) {
         const result = await mx.timestampToEvent(room.roomId, newTs, Direction.Forward);
         return result.event_id;
       },
-      [mx, room]
-    )
+      [mx, room],
+    ),
   );
 
   const handleSubmit = () => {