[refactor] Moved 'removeElementById' to its own TS file

utils/uiHelpers/removeElementById.ts

@@ -0,0 +1,21 @@
+import { getElementById } from "./getElementById";
+
+//
+/**
+ * Given its id, this function removes an element AND its children
+ * @param id The HTML identifier to search for and remove.
+ */
+export function removeElementById(id: string) {
+    try {
+        const elem: HTMLElement = getElementById(id);
+        while (elem.firstChild) {
+            elem.removeChild(elem.firstChild);
+        }
+
+        if (elem.parentNode) {
+            elem.parentNode.removeChild(elem);
+        }
+    } catch (e) {
+        // Probably should log this as we're trying to remove elements that don't exist.
+    }
+}