Keyboard focus jumps to B button after pressing Enter on Menu or Refresh buttons in Simulator

Describe the bug
When navigating with keyboard Tab inside the Simulator, focusing on the Menu button or Refresh button and pressing Enter causes focus to incorrectly move to the B button instead of activating the selected button.

Steps to reproduce the behavior:
1.Navigate to Microsoft MakeCode Arcade.
2.Open any project and select Keyboard Controls.
3.Pressing Ctrl + B --> 2 and focus on Simulator section.
4.Pressing Tab key and focus on Menu or Refresh button.
5.Pressing Enter and observe the behavior.

Actual behavior
Keyboard focus jumps to B button after pressing Enter on Menu or Refresh buttons in Simulator.

Expected behavior
Pressing Enter should activate the focused button.

Screen recording

Additional context
1.OS: Windows 11 24H2 & MacOS Tahoe 26.1
2.Browser: Microsoft Edge, Chrome, Firefox and Safari
3.Arcade version : 2.1.22
4.Microsoft MakeCode version: 12.2.13

Reproduce the issue in the Simulator using the Keyboard Controls flow, then trace the Menu and Refresh button focus and keyboard activation handling. Confirm the fix by checking that pressing Enter activates either focused button without moving focus to the B button, across the reported browsers where available.