fix(useDark): 🐛修复错误引入vueuse的useDark

Author: DaYePython

src/App.vue

@@ -9,6 +9,7 @@
 </template>
 <script setup lang="ts">
 import { darkTheme } from "naive-ui";
+import useDark from "./composeables/useDark";
 const isDark = useDark()
 const theme = computed<typeof darkTheme | null>(() => {
     return isDark.value ? darkTheme : null