feat(Omnichannel): System messages in transcripts (#32752)

.changeset/new-scissors-love.md

.changeset/weak-pets-talk.md

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

apps/meteor/server/models/raw/Messages.ts

apps/meteor/server/services/translation/service.ts

apps/meteor/server/settings/omnichannel.ts

ee/packages/omnichannel-services/jest.config.ts

ee/packages/omnichannel-services/package.json

...mnichannel-services/src/OmnichannelTranscript.fixtures.ts

...es/omnichannel-services/src/OmnichannelTranscript.spec.ts

...ackages/omnichannel-services/src/OmnichannelTranscript.ts

...ckages/omnichannel-services/src/livechatSystemMessages.ts

ee/packages/pdf-worker/src/strategies/ChatTranscript.spec.ts

...r/src/templates/ChatTranscript/ChatTranscript.fixtures.ts

...orker/src/templates/ChatTranscript/components/Message.tsx

.../templates/ChatTranscript/components/MessageList.spec.tsx

...r/src/templates/ChatTranscript/components/MessageList.tsx

...ackages/pdf-worker/src/templates/ChatTranscript/index.tsx

ee/packages/pdf-worker/src/worker.fixtures.ts

ee/packages/pdf-worker/src/worker.spec.ts