Refactor desktop app into separate client and proxy apps

apps/yaak-client/components/Portal.tsx

@@ -0,0 +1,13 @@
+import type { ReactNode } from 'react';
+import { createPortal } from 'react-dom';
+import { usePortal } from '../hooks/usePortal';
+
+interface Props {
+  children: ReactNode;
+  name: string;
+}
+
+export function Portal({ children, name }: Props) {
+  const portal = usePortal(name);
+  return createPortal(children, portal);
+}