fix(mp-alipay): global usingComponents #592

packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js

 const {
   parsePages
-} = require('@dcloudio/uni-cli-shared')
+} = require('@dcloudio/uni-cli-shared')
+
+const {
+  updateAppJsonUsingComponents
+} = require('@dcloudio/uni-cli-shared/lib/cache')
 
 const {
   hasOwn,
@@ -59,6 +63,10 @@ module.exports = function (pagesJson, manifestJson) {
   })
 
   copyToJson(app, pagesJson, pagesJson2AppJson)
+
+  if (app.usingComponents) {
+    updateAppJsonUsingComponents(app.usingComponents)
+  }
 
   return [{
     name: 'app',