Add .env plugin to ensure working former code

Author: roschaefer

nuxt.config.js

@@ -92,6 +92,7 @@ module.exports = {
     }
   },
   plugins: [
+    {src: '~/plugins/env.js'},
     {src: '~/plugins/debug.js', ssr: false},
     {src: '~/plugins/raven-client.js', ssr: false},
     {src: '~/plugins/api.js'},

plugins/env.js

@@ -0,0 +1,13 @@
+import Vue from 'vue'
+
+export default async (context) => {
+  context.app.$env = context.env
+
+  Vue.use({
+    install (Vue, store) {
+      Vue.prototype.$env = context.app.$env
+    }
+  }, context.store)
+
+  return context.app.$env
+}