[New] no-invalid-html-attribute: add support for apple-touch-startup-image rel attributes in link tags

[thomashockaday]

Currently this attribute fails on the latest version:

“apple-touch-startup-image” is never a valid “rel” attribute value  react/no-invalid-html-attribute

According to the docs the accepted values for this rule come from MDN, and MDN states that this value is non-standard but not disallowed, the same as apple-touch-icon.

If I am incorrect here please let me know.

To test this I've added a generic example as seen in Apple's own documentation as well as a longer example more like something that a PWA asset generator would give you (which is recommended by web.dev).

[codecov]

Codecov Report

Merging #3638 (9da1bb0) into master (d36ca2c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3638   +/-   ##
=======================================
  Coverage   97.64%   97.64%           
=======================================
  Files         132      132           
  Lines        9360     9360           
  Branches     3427     3427           
=======================================
  Hits         9140     9140           
  Misses        220      220           

Files	Coverage Δ
lib/rules/no-invalid-html-attribute.js	96.57% <ø> (ø)

[ljharb]

Thanks!

[ljharb]

The failing tests are unrelated to this PR; I'll fix them on master after landing this.

[GabrielF9]

Hey guys, sorry to be bothering, I don't know how the releases works here. Just pinging to know if we have a prevision when this fix will become to a release.

[ljharb]

There’s no timeline; it’ll be included in the next release.

[GabrielF9]

Thanks!