[Windows Terminal - Settings - Defaults]: Unable to navigate 'Font face' suggestions using keyboard in Appearance settings.

[SaurabhNew]

Windows Terminal version

1.22.2362.0

Windows build number

27695.1000

Other Software

Test Environment:
OS: Windows 11 Version Dev (OS Build 27695.1000)
App: Windows Terminal Preview

Steps to reproduce

Repro steps:

1. Open the 'windows terminal' application.
2. Open 'Settings' tab by pressing 'Ctrl+,' keys.
3. Navigate to the 'Defaults' tab and activate it.
4. Navigate to the 'Appearance' button and activate it.
5. Now navigate to 'Font face' edit field by tab key.
6. Suggestion will appear.
7. Now try to navigate in suggestion list by up/down arrow key.
8. Observe the issue.

User experience:
Keyboard users, including those relying on assistive technologies, cannot efficiently browse and select font options from the 'Font face' suggestions. This significantly limits accessibility and hinders smooth navigation in the Appearance settings.

WCAG Reference Link:
https://www.w3.org/WAI/WCAG21/Understanding/keyboard

Attachment:
Users are not able to navigate among the suggestions using keyboard.zip

Expected Behavior

Users should be able to navigate through the font suggestions using the up and down arrow keys without the list closing prematurely. The focus should remain within the list until a selection is made or the user navigates away.

Actual Behavior

When focus lands on the 'Font face' edit field and suggestions appear, pressing the up or down arrow keys immediately selects the first option from the suggestion list and closes the list. Users cannot browse through the available font suggestions using the keyboard.

[carlos-zamora]

This is marked as a Sev3 but after watching the video, I think it's something we should fix in this release (perhaps even service?). Assigning @lhecker since he introduced the new control in #16821. Putting it in the current milestone.