fix(theme/regression): inter getting bundled even importing without-fonts entry (#3412)

change `import { type ... }` to `import type { ... }`

src/client/theme-default/composables/local-nav.ts

@@ -1,5 +1,5 @@
 import { onContentUpdated } from 'vitepress'
-import { type DefaultTheme } from 'vitepress/theme'
+import type { DefaultTheme } from 'vitepress/theme'
 import { computed, shallowRef } from 'vue'
 import { getHeaders, type MenuItem } from '../composables/outline'
 import { useData } from './data'