Hello! Here's an idea to prevent wrongful mass deletions:
When a user is about to delete multiple items at once from a board, there should be a deletion button for them to click on "confirm" to finalize the deletion.
Reason: A user from our team selected everything using the keyboard and ended up deleting nearly all the cards and notes (13k items) from our board at once, causing significant confusion in the company until we were able to restore them.
