Ping after a move

[rxkver]

If we can have the move command for the thread move to another category mention everyone once the thread is moved. That'll help alert the staff about the newly moved thread!

[github-actions]

This issue is stale because it has been open for 100 days with no activity. Remove stale label or comment or this will be closed in 5 days. Please do not un-stale this issue unless it carries significant contribution.

[StephenDaDev]

This feature is approved. Therefore it is not stale.

[fourjr]

Added to v3.6.3-dev1 which is still in development. Will be ready for public release soon.