chore: upgrade TypeScript 4.9 to 5.9, ESLint 8.29 to 8.57, @typescript-eslint 5 to 7

Resolves all TS2345/TS2347/TS7006 type errors introduced by stricter TypeScript 5.x.
Fix Icons.Settings to Icons.Setting, cast account data returns, fix implicit any.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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

@@ -22,7 +22,10 @@ export function RoomImagePack({ room, stateKey }: RoomImagePackProps) {
   const creators = useRoomCreators(room);
 
   const permissions = useRoomPermissions(creators, powerLevels);
-  const canEditImagePack = permissions.stateEvent(StateEvent.PoniesRoomEmotes, userId);
+  const canEditImagePack = permissions.stateEvent(
+    StateEvent.PoniesRoomEmotes as unknown as keyof import('matrix-js-sdk').StateEvents,
+    userId,
+  );
 
   const fallbackPack = useMemo(() => {
     const fakePackId = randomStr(4);
@@ -44,8 +47,8 @@ export function RoomImagePack({ room, stateKey }: RoomImagePackProps) {
 
       await mx.sendStateEvent(
         address.roomId,
-        StateEvent.PoniesRoomEmotes,
-        packContent,
+        StateEvent.PoniesRoomEmotes as unknown as keyof import('matrix-js-sdk').StateEvents,
+        packContent as any,
         address.stateKey,
       );
     },