fix: avoid including vue in import map if using default URLs

Author: yyx990803

src/store.ts

@@ -168,7 +168,23 @@ export class ReplStore implements Store {
   }
 
   serialize() {
-    return '#' + utoa(JSON.stringify(this.getFiles()))
+    const files = this.getFiles()
+    const importMap = files['import-map.json']
+    if (importMap) {
+      const { imports } = JSON.parse(importMap)
+      if (imports['vue'] === this.defaultVueRuntimeURL) {
+        delete imports['vue']
+      }
+      if (imports['vue/server-renderer'] === this.defaultVueServerRendererURL) {
+        delete imports['vue/server-renderer']
+      }
+      if (!Object.keys(imports).length) {
+        delete files['import-map.json']
+      } else {
+        files['import-map.json'] = JSON.stringify({ imports }, null, 2)
+      }
+    }
+    return '#' + utoa(JSON.stringify(files))
   }
 
   getFiles() {
@@ -209,7 +225,8 @@ export class ReplStore implements Store {
         JSON.stringify(
           {
             imports: {
-              vue: this.defaultVueRuntimeURL
+              vue: this.defaultVueRuntimeURL,
+              'vue/server-renderer': this.defaultVueServerRendererURL
             }
           },
           null,