feat: Auto-enable autotranslate (#30370)

.changeset/large-pandas-beam.md

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

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

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

apps/meteor/packages/rocketchat-i18n/i18n/en.i18n.json

...r/server/lib/getSubscriptionAutotranslateDefaultConfig.ts

apps/meteor/server/methods/addAllUserToRoom.ts

apps/meteor/server/settings/message.ts

apps/meteor/tests/end-to-end/api/00-autotranslate.js