fix(train): stable dnd-kit id so /admin/train hydrates without React #418 (COA-204, part 2)
- fix(train): give the persona drag-and-drop context a stable id so its accessibility markup hydrates (React #418, HTML)
- Merge pull request #456 from tpromni/fix/train-dnd-stable-id
Source: tpromni/coach-pulse-admin-ui → dev