feat: renamed old frontend and fixed some minor bugs

frontend/src/hooks/index.ts

@@ -1,5 +1,4 @@
 export { useDebounce } from "./useDebounce";
-export { useLeaveConfirm } from "./useLeaveConfirm";
 export { usePagination } from "./usePagination";
 export { usePersistentState } from "./usePersistentState";
 export { usePopUp } from "./usePopUp";