feat: implement useKeyDown composable

app/composables/useKeyDown.ts

@@ -0,0 +1,15 @@
+export type KeyDownCallback = (key: string) => void;
+
+export const useKeyDown = (callback: KeyDownCallback) => {
+  const handleKeyDown = (event: KeyboardEvent) => {
+    callback(event.key);
+  };
+
+  onMounted(() => {
+    window.addEventListener("keydown", handleKeyDown);
+  });
+
+  onUnmounted(() => {
+    window.removeEventListener("keydown", handleKeyDown);
+  });
+};