for #31532
# Details
This PR adds templates for displaying the "Scheduled batch script" and
"Canceled batch script" global activity feed items. It also updates the
"Cancel batch script?" modal to show a spinner on the cancel button when
applicable.
# Checklist for submitter
## Testing
- [X] QA'd all new/changed functionality manually
<img width="820" height="210" alt="image"
src="https://github.com/user-attachments/assets/45c8b15c-b100-4356-aa65-24441ecc16a0"
/>
Scott Gress
17d1904f67