feat(multi-line): added support for multi-line in ui

frontend/src/hooks/index.ts

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