fix #2279 add umi-plugin-ga

.ga

-{
-  "code":"UA-72788897-6"
-}

config/config.js

@@ -34,6 +34,12 @@ export default {
           : {}),
       },
     ],
+    [
+      'umi-plugin-ga',
+      {
+        code: 'UA-72788897-6',
+      },
+    ],
   ],
   define: {
     APP_TYPE: process.env.APP_TYPE || '',

package.json

@@ -80,7 +80,8 @@
     "stylelint-config-prettier": "^4.0.0",
     "stylelint-config-standard": "^18.0.0",
     "umi": "^2.0.1",
-    "umi-plugin-react": "^1.0.1"
+    "umi-plugin-react": "^1.0.1",
+    "umi-plugin-ga": "^1.0.2"
   },
   "optionalDependencies": {
     "puppeteer": "^1.6.0"