v0.5.0

• Switched to web app API to make authentication work again. This will require all users to relogin.
• Allowed thread bridging in non-thread-only chats.
• Improved handling of getting logged out remotely.
• Added options to automatically ratchet/delete megolm sessions to minimize access to old messages.
• Added option to not set room name/avatar even in encrypted rooms.
• Implemented appservice pinging using MSC2659.
• Updated Docker image to Alpine 3.18.