Major overhaul

- Docker buildx support in CI
- Cypress API Testing in CI
- Restructured folder layout (insert clean face meme)
- Added Swagger documentation and validate API against that (to be completed)
- Use common base image for all supported archs, which includes updated nginx with ipv6 support
- Updated certbot and changes required for it
- Large amount of Hosts names will wrap in UI
- Updated packages for frontend
- Version bump 2.1.0

frontend/js/app/user/delete.js

@@ -0,0 +1,34 @@
+const Mn       = require('backbone.marionette');
+const template = require('./delete.ejs');
+const App      = require('../main');
+
+require('jquery-serializejson');
+
+module.exports = Mn.View.extend({
+    template:  template,
+    className: 'modal-dialog',
+
+    ui: {
+        form:    'form',
+        buttons: '.modal-footer button',
+        cancel:  'button.cancel',
+        save:    'button.save'
+    },
+
+    events: {
+
+        'click @ui.save': function (e) {
+            e.preventDefault();
+
+            App.Api.Users.delete(this.model.get('id'))
+                .then(() => {
+                    App.Controller.showUsers();
+                    App.UI.closeModal();
+                })
+                .catch(err => {
+                    alert(err.message);
+                    this.ui.buttons.prop('disabled', false).removeClass('btn-disabled');
+                });
+        }
+    }
+});