fix: set up menu and taskbar in hook call instead of window event

public/persona.js

@@ -10,13 +10,14 @@ $(document).ready(function () {
 	$(window).on('resize', utils.debounce(configureNavbarHiding, 200));
 	$(window).on('resize', updatePanelOffset);
 
-	$(window).on('action:app.load', function () {
-		setupTaskbar();
-		setupMobileMenu();
+	require(['hooks'], (hooks) => {
+		hooks.on('action:app.load', () => {
+			setupTaskbar();
+			setupMobileMenu();
+		});
 	});
 
 	function updatePanelOffset() {
-		var env = utils.findBootstrapEnvironment();
 		const headerEl = document.getElementById('header-menu');
 
 		if (!headerEl) {