Revert "remove duplicate code"

This reverts commit 7b74045a.

src/App.vue

@@ -68,6 +68,9 @@ import TopBar from './components/TopBar.vue'
       }
     },
     mounted: function(){
+      if (!this.no_locale) {
+        this._i18n.locale = this.$store.state.locale      
+      }
       document.title = 'Ordbøkene - ' + process.env.VUE_APP_VERSION_LABEL
     },
     methods: {