feat: better cache some stuff

islands/KMenu.tsx

@@ -1,5 +1,5 @@
 import { Signal, useSignal } from "@preact/signals";
-import { useRef } from "preact/hooks";
+import { useEffect, useRef } from "preact/hooks";
 import { useEventListener } from "@lib/hooks/useEventListener.ts";
 import { menus } from "@islands/KMenu/commands.ts";
 import { MenuEntry } from "@islands/KMenu/types.ts";