refactor: Subscriptions model - 5 (#28550)

apps/meteor/app/api/server/v1/users.ts

...channel-settings/server/functions/saveRoomCustomFields.js

...eor/app/channel-settings/server/functions/saveRoomName.js

...eor/app/channel-settings/server/functions/saveRoomType.js

apps/meteor/app/federation/server/endpoints/dispatch.js

apps/meteor/app/lib/server/functions/cleanRoomHistory.ts

apps/meteor/app/lib/server/functions/createRoom.ts

apps/meteor/app/lib/server/functions/deleteRoom.ts

...teor/app/lib/server/functions/relinquishRoomOwnerships.ts

apps/meteor/app/lib/server/functions/saveCustomFields.ts

...lib/server/functions/saveCustomFieldsWithoutValidation.js

apps/meteor/app/lib/server/functions/saveUserIdentity.ts

apps/meteor/app/lib/server/functions/setUserActiveStatus.ts

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

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

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

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

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

apps/meteor/app/models/server/models/Subscriptions.js

apps/meteor/app/threads/server/functions.js