Move and clarify the native word math support option

[SaschaCowley]

Link to issue number:

None

Summary of the issue:

The "Use native math speech in Word and Outlook" option is misleading, as it affects speech, braille and navigation.

Description of user facing changes:

The option has been renamed to "Use native math support in Word and Outlook", and moved to a new "Application support" section of the Math settings panel.
The user guide has also been updated to clarify how the option works, and that this prevents using MathCAT in Word and Outlook altogether.

Description of developer facing changes:

None.

Description of development approach:

Created a new group in the math panel. Moved the checkbox creation after creation of that panel, and changed it to point to the new group.
Rewrote the UG as appropriate.

Testing strategy:

Ran from source and checked that the settings panel looks correct.
Built the user guide from source and checked the output.
Ran from source, tabbed to the native word math checkbox and hit F1 and checked that I was moved to the correct section of the user guide.

Known issues with pull request:

None

Code Review Checklist:

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

[Qchristensen]

Changes read well

[Qchristensen]

The new grouping is good, great work!