UI Automation in Windows Console: fix-up changes for UIA by default

[codeofdusk]

Link to issue number:

Fix-up of #10964.

Summary of the issue:

• The link to Expose Text Attributes to UI Automation microsoft/terminal#10336 was broken by t2t preproc directives.
• Additional clarification on "NVDA API levels" might be appreciated by some users.

Description of how this pull request fixes the issue:

Updates changes.

Testing strategy:

Checked t2t output.

Known issues with pull request:

I wasn't sure how to override the t2t preproc directive to write a raw hash symbol for the microsoft/terminal PR, so I didn't use it. Feel free to amend with an escaped hash.

Change log entries:

N/A

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English