Changes to Update room notification settings

request body became required

api operation id post-rooms-roomId-users-userId-notification-settings removed and replaced with update-room-notification-settings

api tag Notifications added

api tag Deprecated removed

endpoint deprecated

the response property textMentions became required for the status 200

the response property threads became required for the status 200

api tag Deprecated added

api tag Notifications removed

added the new optional request property textMentions

added the optional property textMentions to the response with the 200 status