fix: improve example

Author: ModyQyW

src/composables/useQuery.ts

@@ -1,10 +1,8 @@
-import type { MaybeRef } from '@vueuse/core'
-
-export function useQuery(key?: MaybeRef<string>) {
+export function useQuery(key?: MaybeRefOrGetter<string>) {
   const query = ref<AnyObject>({})
   onLoad((q) => {
     query.value = q || {}
   })
-  const value = computed(() => (key ? query.value[unref(key)] : null))
+  const value = computed(() => (key ? query.value[toValue(key)] : null))
   return { query, value }
 }