Decorations: Allow intersections

[zhangtao25]

Clear and concise description of the problem

I'm working on a hydrated version of the Istanbul report, and there will be some overlapping tagging situations that will prompt intersections when using the shiki.

Suggested solution

I would like to be able to turn on whether or not to check for intersections via configuration.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

Contributes

• If this feature request is accepted, I am willing to submit a PR to fix this issue

[antfu]

It's just not possible to create that DOM structure - if you have any idea to solve that PR welcome

[zhangtao25]

It's just not possible to create that DOM structure - if you have any idea to solve that PR welcome

I migrated from highlight.js because of the lack of code block decorating functionality. I also investigated Codemirror, but the package size was too big, and all I wanted was block highlighting. shiki provides block decoration, which is very important to me. I plan to check out shiki code and make a PR.