help to work with linked modules and npx

#1076 @Jinjiang

lib/builder/webpack/base.config.js

@@ -78,7 +78,7 @@ export default function webpackBaseConfig ({ isClient, isServer }) {
           loader: 'babel-loader',
           exclude: /node_modules/,
           query: defaults(this.options.build.babel, {
-            presets: ['vue-app'],
+            presets: [require.resolve('babel-preset-vue-app')],
             babelrc: false,
             cacheDirectory: !!this.options.dev
           })

lib/builder/webpack/vue-loader.config.js

@@ -3,7 +3,7 @@ import { extractStyles, styleLoader } from './helpers'
 
 export default function ({ isClient }) {
   let babelOptions = JSON.stringify(defaults(this.options.build.babel, {
-    presets: ['vue-app'],
+    presets: [require.resolve('babel-preset-vue-app')],
     babelrc: false,
     cacheDirectory: !!this.options.dev
   }))