[Feature]: Add confirmation dialog when deleting repeater to reassign pings

**Platform:** Other

**Description:**
when deleting a repeater in the repeater admin page, id like a pop up window to ask if it should replace / move all its pings to the selected repeater in a drop down.

**Discord:** https://discord.com/channels/1463383723327356992/1466576085960626186/1534913628694904905

Submitted by: littleaton (Discord)