fix: import docsearch css only when provider is algolia

src/client/theme-default/components/VPAlgoliaSearchBox.vue

@@ -4,6 +4,7 @@ import docsearch from '@docsearch/js'
 import { onMounted, watch } from 'vue'
 import { useRouter, useRoute } from 'vitepress'
 import { useData } from '../composables/data'
+import '@docsearch/css'
 
 const props = defineProps<{
   algolia: DefaultTheme.AlgoliaSearchOptions

src/client/theme-default/components/VPNavBarSearch.vue

@@ -1,5 +1,4 @@
 <script lang="ts" setup>
-import '@docsearch/css'
 import { onKeyStroke } from '@vueuse/core'
 import {
   computed,