feat: Setup for Vue 2 of Vue - Official extension

Author: baboon-king

template/tsconfig/base/tsconfig.app.json

@@ -10,5 +10,9 @@
     "paths": {
       "@/*": ["./src/*"]
     }
+  },
+  "vueCompilerOptions": {
+    // "target": 2, // For Vue version <= 2.6.14
+    "target": 2.7
   }
 }