feat: update emails to not look garbage

chore: update rauth

feat: add 'Focus' presence status

fix: strip unknown channels from categories (fixes revoltchat#201)

fix: strip unknown channels from categories (fixes revoltchat#201)

fix: use correct validation for masq role colour

feat: add ability to leave groups / servers silently

fix: actually transfer group ownership

fix: reaction ordering by using indexmap

fix: adjust permission checks for `member_edit`