Revert "fix: #7216, hide taskbar on chat modal invocation on mobile"

This reverts commit a70db885cf.

public/src/modules/chat.js

@@ -297,7 +297,6 @@ define('chat', [
 
 	module.enableMobileBehaviour = function (modalEl) {
 		app.toggleNavbar(false);
-		taskbar.toggleVisibility(false);
 		modalEl.attr('data-mobile', '1');
 		var messagesEl = modalEl.find('.modal-body');
 		messagesEl.css('height', module.calculateChatListHeight(modalEl));
@@ -309,7 +308,6 @@ define('chat', [
 
 	module.disableMobileBehaviour = function () {
 		app.toggleNavbar(true);
-		taskbar.toggleVisibility(true);
 	};
 
 	module.calculateChatListHeight = function (modalEl) {

public/src/modules/taskbar.js

@@ -182,9 +182,5 @@ define('taskbar', ['benchpress', 'translator'], function (Benchpress, translator
 		taskbar.tasklist.find('[data-module="' + module + '"][data-uuid="' + uuid + '"] [component="taskbar/title"]').text(newTitle);
 	};
 
-	taskbar.toggleVisibility = function (visible) {
-		taskbar.taskbar.toggleClass('hidden', !visible);
-	};
-
 	return taskbar;
 });