Updated confirmDelete modal with changes from sport admin

The confirmDelete modal on sport admin got a bit ahead of the one on sport-ng, so Imma fix that.

Sport admin commits:
https://github.com/sportngin/sport_admin/commit/708e0cbe3f3e79b9e2dbd58a9c2b194462b87113
https://github.com/sportngin/sport_admin/commit/7fbcb255517dfe6f7751fb101e714e483ebb6436