General: Performance improvements for reservation imports/updates for all integrations

General: Improved handling of refresh tokens for Booking Experts and Lobbi integrations

General: Several improvements to onboarding process

General: Fixed issue with incorrectly trimmed HTTP headers for proxy server

Rate Recommendation: Fixed sort order for derived room types in Rates Calendar room type selection

Settings: Fixed issue when working with multiple channel managers, where updating the Channel Supplements could result into incorrect settings