Rework login page to be AJAX/Vue.js based

app/controllers/Home.controller.js

@@ -7,6 +7,9 @@ const Controller = require('libflitter/controller/Controller')
  * are used as handlers for routes specified in the route files.
  */
 class Home extends Controller {
+    static get services() {
+        return [...super.services, 'Vue']
+    }
 
     /*
      * Serve the main welcome page.
@@ -18,7 +21,16 @@ class Home extends Controller {
          * The page() method is added by Flitter and passes some
          * helpful contextual data to the view as well.
          */
-        return res.page('welcome', {user: req.user})
+        return res.page('welcome', {
+            user: req.user,
+            ...this.Vue.data(),
+        })
+    }
+
+    async tmpl(req, res) {
+        return res.page('tmpl', this.Vue.data({
+            login_message: 'Please sign-in to continue.'
+        }))
     }
 }