Add plugin to control playback speed like in YouTube (from 0.25 to 2)

providers/dom-elements.js

@@ -0,0 +1,20 @@
+let domElements = {};
+
+const watchDOMElement = (name, selectorFn, cb) => {
+	const observer = new MutationObserver((mutations, observer) => {
+		if (!domElements[name]) {
+			domElements[name] = selectorFn(document);
+		}
+
+		if (domElements[name]) {
+			cb(domElements[name]);
+		}
+	});
+
+	observer.observe(document, {
+		childList: true,
+		subtree: true,
+	});
+};
+
+module.exports = { watchDOMElement };