Convert useModified into a real hook.

src/components/hooks/useModified.ts

@@ -0,0 +1,15 @@
+import useStore from 'store/modified';
+
+export function useModified(key?: string) {
+  const modified = useStore(state => state?.[key]);
+
+  const touch = (id?: string) => {
+    if (id || key) {
+      useStore.setState({ [id || key]: Date.now() });
+    }
+  };
+
+  return { modified, touch };
+}
+
+export default useModified;