Show conflicts warning when saving work item with keyboard shortcut

What does this MR do and why?

Show conflicts warning when saving work item with keyboard shortcut

Changelog: fixed

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Create a new work item, add a long description so it goes below the viewport
2. Click edit description, stay in edit mode
3. Open in another browser/tab, edit description, save
4. Return to first window, press ctrl+enter (or cmd+enter) to try saving
5. Button should be focused