The key combination provided inside description textarea does not work with keyboard

Issue Summary

An instruction "Rich Text Area. Press ALT-0 for help" is given to the screen reader user when the focus moves on to the 'description' textarea, but these key combinations are not working.

Steps to Reproduce

1. Turn on screen reader.
2. Navigate inside "create issue" modal dialog.
3. Navigate to the description textarea. 
4. Observe that the screen reader announces as "Rich Text Area. Press ALT-0 for help."
5. When user press alt/option + 0 nothing happens.

Actual Results

While focus is inside description textarea, as per the label when user presses alt + 0 (or option + 0 in mac) nothing happens. 

This makes screen reader users difficult to understand the functionality associated with the key combinations.

Expected Results

When user presses alt + 0 (or option + 0 in mac) the help functionality should be made available to the users.

Note: As per observations the textarea is coded via a third party tool called as TinyMCE

As per the TinyMCE website, after pressing alt + 0, a help modal dialog is displayed containing information regarding Keyboard shortcuts, plugins, etc.

TineMCE.mov

Screenshot

Screen recording

Screen Recording 2022-10-25 at 3.45.24 PM.mov

Workaround

Update the aria-label to remove the text "Press ALT-0 for help" if the help functionality will not be displayed.