v3.41.2 RTC Fixes

API

• Fix: Webhook handling no longer logs spurious errors

Client

• Fix: Don't show desktop notifications if message was sent by current user (e.g. from mobile)
• Fix: Tavern and Guilds properly refresh messages when user submits a new post

Repository

• Chore: Current client folder moved to website/client-old in preparation for frontend rewrite
• Chore: NPM shrinkwrap updated