Add back the fetchCurrentUser

There was another reason: The user menu in the top right listens on
`auth/user` which does not get updated otherwise. We should overthink
having two separate result types in the backend:

* currentUser: [LoggedInUser]
* User: [User]

Why not return `User` in both cases?

pages/settings/index.vue

@@ -135,6 +135,9 @@ export default {
           update: (store, { data: { UpdateUser } }) => {
             const { name, locationName, about } = UpdateUser
             this.form = { name, locationName, about }
+            // update the user menu, too
+            // which listens on auth/user
+            this.$store.dispatch('auth/fetchCurrentUser')
           }
         })
         .then(data => {