New strictTemplates option causes issues with data-* attributes

[2-5]

It seems the fix for #1413 is not complete, I'm seeing data-* errors with the latest Volar and strictTemplates on.

[johnsoncodehk]

See #1418 (comment).
You need to define HTMLAttributes interface to allow data-*, see #1077 (comment).

[rchl]

A suggestion to manually add definitions for all attributes that are already valid HTML attributes doesn't really make sense to me. This applies both to data-* and aria-*.

And I suppose mine #1871 is a duplicate.

[johnsoncodehk]

@rchl we can't differentiate data-*, aria-* from user code is HTML attributes or valid component props, if force discern it to HTML attributes it will lead to #1413. Requiring the project to explicitly define HTMLAttributes for this seems to be the only way for now.

[rchl]

I understand that there might be technical difficulties with solving it but if Volar strives to be user-friendly official Vue language server then it can't require everyone to do such basic things.

We should at least keep some issue open for it so that it's clear that it's a bug (or something to solve at some point) and not make this suggestion an official response.

Maybe the solution would be for volar to include definitions for known HTML attributes (would work for aria-* at least).

[johnsoncodehk]

FYI it was handle by dataAttributes and htmlAttributes options after v1.0: https://github.com/johnsoncodehk/volar/blob/19cc0f56865fa3827420b15e85f4ab26e9850e18/vue-language-tools/vue-language-core/schemas/vue-tsconfig.schema.json#L39-L48