Alt-clicking a profile doesn't open in a pane when Narrator is turned on

### Windows Terminal version

1.13.10336.0

### Windows build number

10.0.19044.1706

### Other Software

Windows Narrator

### Steps to reproduce

1. Open any shell in Windows Terminal.
2. Open the profile menu and click on an entry while pressing the Alt key.
3. Note that the profile is opened in a pane of the current window. Close that pane.
4. Now turn on the Windows Narrator screen reader.
5. Open the profile menu again and click on an entry while pressing the Alt key.
6. Note that the profile is now opened in a separate tab.

### Expected Behavior

Alt-clicking on a profile should always open it in a pane of the current window.

### Actual Behavior

When the narrator is turned on, alt-clicking opens the profile in a separate tab.

Btw, if there's some accessibility reason for this, that's fine. I was just testing something with the narrator and was surprised by the behavior, but it's not something that affects me personally.

Reproduce the profile-menu Alt-click behavior with Windows Narrator enabled and disabled, using the six steps in the issue. Trace the profile-menu activation path and verify that Alt-click consistently opens the selected profile in a pane of the current window, unless accessibility requirements justify different behavior.

Written by the indexing model from the issue text.