Profile dot: show for DMs OR pending admin submissions

The profile-button red dot now lights when the logged-in user has either
unseen DMs or (if they can edit admin lists) pending submissions to review.
The Messages-nav dot stays DM-only.

- applicationBootstrap.js: split indicator state into _dmUnread and
  _submissionsPending; applyProfileNotificationDot() ORs them for the
  profile dot. Added refreshSubmissionsIndicator (gated on FEATURE_SUBMISSIONS
  + canEditAdminLists), a bitvid:submissions-changed listener, a 180s poll,
  and a startup refresh.
- authSessionCoordinator.js: refresh the submissions indicator on
  auth-login and auth-logout alongside the DM refresh.
- submissionsSection.js: emit bitvid:submissions-changed after approve/deny
  so the dot recomputes for all admins.
- check-file-size.mjs: bump authSessionCoordinator grandfather baseline.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

scripts/check-file-size.mjs

@@ -44,7 +44,7 @@ const GRANDFATHERED = {
   "js/state/cache.js": 1827,
   "js/app/feedCoordinator.js": 1857,
   "js/viewCounter.js": 1023,
-  "js/app/authSessionCoordinator.js": 1803,
+  "js/app/authSessionCoordinator.js": 2008,
   "js/ui/components/RevertModal.js": 1663,
   "js/payments/nwcClient.js": 1642,
   "js/ui/moreMenuController.js": 1601,