[Docs Site] Track DocSearch click events

Author: KianNH

src/scripts/analytics.ts

@@ -2,8 +2,10 @@ import { registerLinks } from "./analytics/links";
 import { registerTabs } from "./analytics/tabs";
 import { registerDetails } from "./analytics/details";
 import { registerCopyButtons } from "./analytics/codeblocks";
+import { registerDocSearch } from "./analytics/docsearch";
 
 registerLinks();
 registerTabs();
 registerDetails();
 registerCopyButtons();
+registerDocSearch();

src/scripts/analytics/docsearch.ts

@@ -0,0 +1,7 @@
+import { track } from "~/util/zaraz";
+
+export function registerDocSearch() {
+	document.querySelector("#docsearch")?.addEventListener("click", () => {
+		track("click docs search pop-up");
+	});
+}