chore: Change ddpsdk.stream to return subscription (#29375)

apps/meteor/app/utils/client/lib/SDKClient.ts

apps/meteor/client/providers/ServerProvider.tsx

apps/meteor/definition/externals/meteor/meteor.d.ts

packages/api-client/tsconfig.json

packages/ddp-client/__tests__/ClientStream.spec.ts

packages/ddp-client/__tests__/Connection.spec.ts

packages/ddp-client/__tests__/DDPSDK.spec.ts

packages/ddp-client/__tests__/Timeout.spec.ts

packages/ddp-client/__tests__/helpers/index.ts

packages/ddp-client/jest.config.ts

packages/ddp-client/package.json

packages/ddp-client/src/ClientStream.ts

packages/ddp-client/src/Connection.ts

packages/ddp-client/src/DDPSDK.ts

packages/ddp-client/src/README.md

packages/ddp-client/src/TimeoutControl.ts

packages/ddp-client/src/legacy/RocketchatSDKLegacy.ts

packages/ddp-client/src/livechat/LivechatClientImpl.ts

packages/ddp-client/src/types/Account.ts

packages/ddp-client/src/types/ClientStream.ts