[AI Assistance] Temp use SoftContext menu

This fixes an a11y issue, but we would want to fix the issue in
general as it occurs in other places as well.
Will open a separate bug to track that.

Bug: 377982022
Change-Id: Ic4a86ab8e5e205e6f22737c0b04b3084adec5686
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6010831
Commit-Queue: Nikolay Vitkov <[email protected]>
Reviewed-by: Alex Rudenko <[email protected]>
Auto-Submit: Nikolay Vitkov <[email protected]>
Commit-Queue: Alex Rudenko <[email protected]>

Author: Lightning00Blade

front_end/panels/freestyler/FreestylerPanel.ts

@@ -654,6 +654,7 @@ export class FreestylerPanel extends UI.Panel.Panel {
     const contextMenu = new UI.ContextMenu.ContextMenu(event, {
       x: boundingRect.left,
       y: boundingRect.bottom,
+      useSoftMenu: true,
     });
 
     for (const agent of [...this.#agents].reverse()) {