refactor: Remove fibers from users models 8 (#28728)

apps/meteor/app/lib/server/lib/processDirectEmail.ts

apps/meteor/app/lib/server/lib/sendNotificationsOnMessage.js

apps/meteor/app/lib/server/methods/addUsersToRoom.ts

apps/meteor/app/lib/server/methods/deleteUserOwnAccount.ts

apps/meteor/app/lib/server/methods/sendMessage.ts

apps/meteor/app/lib/server/methods/setUsername.ts

apps/meteor/app/lib/server/startup/filterATAllTag.js

apps/meteor/app/lib/server/startup/filterATHereTag.js

apps/meteor/app/livechat/client/startup/notifyUnreadRooms.js

apps/meteor/app/livechat/imports/server/rest/dashboards.ts

apps/meteor/app/livechat/imports/server/rest/inquiries.ts

apps/meteor/app/livechat/imports/server/rest/users.ts

apps/meteor/app/livechat/server/api/lib/livechat.ts

apps/meteor/app/livechat/server/api/v1/agent.ts

apps/meteor/app/livechat/server/api/v1/config.ts

apps/meteor/app/livechat/server/api/v1/room.ts

apps/meteor/app/livechat/server/hooks/beforeDelegateAgent.js

...teor/app/livechat/server/hooks/offlineMessageToChannel.js

apps/meteor/app/livechat/server/lib/Helper.js

apps/meteor/server/models/raw/Users.js