Describe the bug
The most recent update v2.70.2 broke something with the encoding 😭😭. Is this intended and we need to include any new settings?

Generated HTML

To Reproduce

Broken
Check here, built by 2.70.2 https://stride-doc-staging.azurewebsites.net/latest/jp/index.html
Check here, built by 2.70.2 https://stride-doc-staging.azurewebsites.net/latest/jp/manual/index.html

Ok
Check here, built by 2.70.0 https://stride-docs-test.azurewebsites.net/latest/jp/
Check here, built by 2.70.0 https://stride-docs-test.azurewebsites.net/latest/jp/manual/index.html

If needed:
https://github.com/stride3d/stride-docs/blob/staging/en/docfx.json

Expected behaviour
The Japanese language should be rendered correctly.