perf(projects): move changing document title by locale to global event of composables & add appLoading unmount

src/App.vue

@@ -13,26 +13,14 @@
 </template>
 
 <script setup lang="ts">
-import { watch } from 'vue';
-import { useRoute } from 'vue-router';
 import { dateZhCN, zhCN } from 'naive-ui';
-import { useI18n } from 'vue-i18n';
 import { subscribeStore, useThemeStore } from '@/store';
 import { useGlobalEvents } from '@/composables';
 
 const theme = useThemeStore();
-const { locale, t } = useI18n();
-const route = useRoute();
 
 subscribeStore();
 useGlobalEvents();
-
-watch(
-  () => locale.value,
-  () => {
-    document.title = route.meta.i18nTitle ? t(route.meta.i18nTitle) : route.meta.title;
-  }
-);
 </script>
 
 <style scoped></style>