Add breadcrubs, logout redirect, and project notification page CHANGES

Author: benvinegar

CHANGES

@@ -2,6 +2,9 @@ Version 8.5 (Unreleased)
 ------------------------
 
 - Deprecated ``sentry celery`` subcommand in favor of ``sentry run {worker|cron}``
+- Breadcrumb interface now rendered in event UI
+- Project notification settings page now indicates if current user is subscribed to active project
+- User is now automatically redirected to login page if their session expires inside React client application
 
 Schema Changes
 ~~~~~~~~~~~~~~
@@ -17,6 +20,7 @@ Schema Changes
 
 Version 8.4.1
 -------------
+
 - Fixed issue in running 8.4 migrations on MySQL only.
 - Fixed issue that caused an infinite loop in ``patch_context.py`` under a race condition.
 - Silently ignore breadcrumb data coming from clients instead of showing an error in the UI.