Add configuration parameter to allow redaction of content from push messages for google/apple devices

Fix thinko in initial public room user spam

Don't work out users who share room with appservice users

only add new filter when not existent prevoisly

Add API to quarantine media

Add shutdown room API

Split out user directory to a separate process

Include users who you share a room with in user directory

allow Authorization header

Signed-off-by: Matthias Kesler <krombel@krombel.de>

Release v0.21.1

Fix phone home stats