Refactor desktop app into separate client and proxy apps

apps/yaak-client/hooks/useToggle.ts

@@ -0,0 +1,7 @@
+import { useCallback, useState } from 'react';
+
+export function useToggle(initialValue = false) {
+  const [value, setValue] = useState<boolean>(initialValue);
+  const toggle = useCallback(() => setValue((v) => !v), []);
+  return [value, toggle, setValue] as const;
+}