ui(admin): add "working" React admin ui

resources/scripts/plugins/useDebouncedState.ts

@@ -0,0 +1,12 @@
+import { useState } from 'react';
+import { debounce } from 'debounce';
+
+type DebounceFn<V> = ((value: V) => void) & { clear: () => void };
+
+export default <S> (initial: S, interval?: number, immediate?: boolean): [ S, DebounceFn<S> ] => {
+    const [ state, setState ] = useState<S>(initial);
+
+    const debouncedSetState = debounce((v: S) => setState(v), interval, immediate);
+
+    return [ state, debouncedSetState ];
+};