Add hotkey for download

hotkey.js

@@ -0,0 +1,26 @@
+nodes = document.querySelectorAll(":hover");
+i = 1;
+console.log(nodes);
+videoNode = nodes[nodes.length - i];
+
+while (videoNode && videoNode.tagName != "YTD-RICH-ITEM-RENDERER") {
+	videoNode = videoNode.parentElement;
+	console.log(videoNode);
+}
+if (!(videoNode && videoNode.tagName == "YTD-RICH-ITEM-RENDERER")) {
+	console.error("No video element found.");
+} else {
+	link = videoNode.querySelector("a#video-title-link").href;
+	fetch("http://localhost:5000/download", {
+		method: "POST",
+		headers: {
+			"Content-Type": "application/json",
+		},
+		body: JSON.stringify({
+			link: link,
+		}),
+	}).then((res) => {
+		console.log(res);
+		res.json().then((data) => console.log(data));
+	});
+}