feat(main): Add base theme: This is the falcon theme out of the box.

This is falcon v3.1.2

_dev/js/theme/utils/DynamicImportDOMEvents.js

@@ -0,0 +1,42 @@
+import $ from 'jquery';
+
+class DynamicImportDOMEvents {
+  constructor({
+    importer,
+    events,
+    eventSelector,
+    preventDefault,
+  } = {}) {
+    this.eventSelector = eventSelector;
+    this.events = events;
+    this.eventsArray = events.split(' ');
+    this.preventDefault = preventDefault;
+    this.importer = importer;
+    this.fetchFiles = this.fetchFiles.bind(this);
+
+    this.bindEvents();
+  }
+
+  fetchFiles(e = false) {
+    if (e && this.preventDefault) {
+      e.preventDefault();
+    }
+
+    this.importer.loadFiles(() => {
+      if (e && this.eventsArray.includes(e.type)) {
+        $(e.target).trigger(e.type);
+        this.unbindEvents();
+      }
+    });
+  }
+
+  bindEvents() {
+    $(document).on(this.events, this.eventSelector, this.fetchFiles);
+  }
+
+  unbindEvents() {
+    $(document).off(this.events, this.eventSelector, this.fetchFiles);
+  }
+}
+
+export default DynamicImportDOMEvents;