Search-kit - better user experience for bulk updates

Request that we provide feedback (progress bar) when doing a bulk update from search kit

I did a search for 100,000 activities via search kit, chose to update the date using the update option and selected 'update 100,000 activities'. Nothing happened. Except it did. Around about 20k activities were updated & we wound up with some js errors when it presumably timed out at the php level.

Being able to update large numbers is a winning feature of search kit - but it needs a progress bar