Add VoiceOver page and added to Device Controls page

[tiffany-kobiton]

Summary

Added the VoiceOver information page. Included mention and screenshot of VoiceOver in the Device Controls page. Linked from Device Control list to VoiceOver information page. Edited wording.

Related PRs, issues, or features (optional)

• N/A

Metadata

• [✅ ] Adds new file(s)
• [ ✅ ] Edits existing file(s)
• Removes file(s)

PR contributor checklist

• My PR follows the Kobiton Docs contributor guidelines, meaning:

  • My content contains correct spelling and grammar.
  • My directories and files are named and structured correctly.
  • My style and voice follows the Microsoft Style Guide.
  • I added all new pages to their section's nav.adoc file.
  • I removed all localizations (like en-us) from my URLs.

[tungmhoang]

@tiffany-kobiton all changes in this PR are included in another PR: #413. Therefore, I am going to close this one and work on the other PR (as there are more changes there).