added component to client.ts

Author: schwzr

docs/src/.vuepress/client.ts

@@ -5,11 +5,11 @@ import Layout from './layouts/PageLayout.vue'
 import NotFoundLayout from './layouts/NotFoundLayout.vue'
 import BlogLayout from './layouts/BlogLayout.vue';
 
-
+import OldVersions from './components/OldVersions.vue';
 
 export default defineClientConfig({
     enhance({ app }) {
-    
+    app.component('OldVersions', OldVersions);
   },
   layouts: {
     ParentLayout,