Enhancement: grouped together Undo and Redo buttons on mobile (#9109)

* bugfix: put the redo and undo button under the same div so that they look grouped together

* fixed the position of the redo and undo buttons to the right

packages/excalidraw/components/MobileMenu.tsx

@@ -145,12 +145,14 @@ export const MobileMenu = ({
       <div className="App-toolbar-content">
         <MainMenuTunnel.Out />
         {actionManager.renderAction("toggleEditMenu")}
-        {actionManager.renderAction("undo")}
-        {actionManager.renderAction("redo")}
         {actionManager.renderAction(
           appState.multiElement ? "finalize" : "duplicateSelection",
         )}
         {actionManager.renderAction("deleteSelectedElements")}
+        <div>
+          {actionManager.renderAction("undo")}
+          {actionManager.renderAction("redo")}
+        </div>
       </div>
     );
   };