Preserve leading whitespace in fenced blocks in doc comments

[Veetaha]

Fixes #3370.

This also updates the generated documentation and typescript code to fix lack of indentation on existing fenced blocks in this repo.

[azure-sdk]

❌ There is undocummented changes. Run chronus add to add a changeset or click here.

The following packages have changes but are not documented.

• ❌@typespec/compiler

The following packages have already been documented:

• ✅ @typespec/http
• ✅ @typespec/protobuf
• ✅ @typespec/rest
• ✅ @typespec/versioning
• ✅ @typespec/xml

Show changes

@typespec/http - internal ✏️

Regen docs

@typespec/protobuf - internal ✏️

Regen docs

@typespec/rest - internal ✏️

Regen docs

@typespec/versioning - internal ✏️

Regen docs

@typespec/xml - internal ✏️

Regen docs

[timotheeguerin]

/azp run typespec - pr tools

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[azure-sdk]

You can try these changes at https://cadlplayground.z22.web.core.windows.net/prs/3399/

Check the website changes at https://tspwebsitepr.z22.web.core.windows.net/prs/3399/

[timotheeguerin]

Thanks for the contribution! this looks good, talked with the Team.