… `TextCtrl` (#15953)

Fixes #15952

Summary of the issue:
The text is updated when the mouse moves on the Speech Viewer

Description of user facing changes
When the mouse is in TextCtrl, the voice text is no longer updated

Description of development approach
Add a condition to check whether the mouse is inside the TextCtrl when determining whether to update the text

Fixes #14240

Summary of the issue:
Definition lists are not exposed correctly in NVDA.
They are also not supported in markdown natively.
In order to convert text2tags to markdown, these must be converted to tables

Description of user facing changes
Definition lists are now tables in the user guide, which are exposed better by NVDA.

The user guide standards have been updated to encourage the following format for documenting settings.
The standards have been expanded to further document settings in a well structured manner.
This is to improve readability, creating a simple standard to learn more about a settings documentation.
This also allows for the future of automatically collating tables into a settings reference similar to key commands.

Options	Default (Enabled), Enabled, Disabled
Default	Enabled
Toggle command	nvda+shift+e
Option	Behaviour
Enabled	behaviour of enabled
Disabled	behaviour of enabled
Description of development approach
All t2t files had definition lists converted to markdown.
The following regex was used to perform the conversion.

To remove the definition list terminator :

Find: ((^:.+\n  .*\n)+):
replace: $1
To replace rows:

Find: ^: (.*)\n  (.*)\n
Replace: || $1 | $2 |\n