JS frontend stuff

Move old ember frontend to properly named folder
Add vue based new frontend

frontend-reactive/testem.js

@@ -1,23 +0,0 @@
-'use strict';
-
-module.exports = {
-  test_page: 'tests/index.html?hidepassed',
-  disable_watching: true,
-  launch_in_ci: ['Chrome'],
-  launch_in_dev: ['Chrome'],
-  browser_start_timeout: 120,
-  browser_args: {
-    Chrome: {
-      ci: [
-        // --no-sandbox is needed when running Chrome inside a container
-        process.env.CI ? '--no-sandbox' : null,
-        '--headless',
-        '--disable-dev-shm-usage',
-        '--disable-software-rasterizer',
-        '--mute-audio',
-        '--remote-debugging-port=0',
-        '--window-size=1440,900',
-      ].filter(Boolean),
-    },
-  },
-};