refac

src/lib/stores/index.ts

@@ -27,6 +27,7 @@ export const mobile = writable(false);
 
 export const socket: Writable<null | Socket> = writable(null);
 export const activeUserIds: Writable<null | string[]> = writable(null);
+export const activeChatIds: Writable<Set<string>> = writable(new Set());
 export const USAGE_POOL: Writable<null | string[]> = writable(null);
 
 export const theme = writable('system');