This addon adds a few things that I felt were missing from XenForo's PWA app:
If the user that is installing the PWA app is logged in, auto-log them into the PWA app (don't need to force users to log-in from scratch when they first load the installed app).
Use Sec-Fetch-Site header as replacement for CSRF with a fallback to CSRF if browser doesn't support Sec-Fetch-Site (prevent stale sessions from causing security error message)
Automatic refresh of badge counters when...
