add unassigned command to report the status of screen curtain (#19767)
Summary of the issue:
users needs a way to know what the current status of screen curtain is
. Previously , Users had to check the NVDA settings or perform the shortcut NVDA+CTRL+ESC to know what is the current status of the screen curtain if it is activated or deactivated.
Description of user facing changes:
Now, users can assign a new custom shortcut that when it is performed will allow the users to get a notification with the current status of the screen curtain .
Description of developer facing changes:
None
Description of development approach:
Added a new intrys with an if check in /source/globalCommands.py, and added new entrys in the changes and the user docs files