Add 'text-decoration-color' to default 'transition' and 'transition-colors' utilities

[fekle]

Hi there!

In this pull request I added the text-decoration-color property to the default options for transition and transition-colors utilities, as tailwindcss v3 introduced support for underline styles.

As it is right now when the underline color differs from the text color, say it is transparent by default and black on hover, transition and transition-colors only enable transition on the text color itself, but not on the underline color.

I'm not sure if this was intended, but in my opinion it makes sense to also transition the text-decoration-color property by default.
Or maybe it would be better to add a new transition-text-decoration property?

I updated all test files to reflect those changes, and all tests pass.

[reinink]

@fekle Good catch! Thanks for submitting this PR 🙏

[fekle]

No worries, thanks for merging!
Sorry about those tailwind-output-* files in the fixtures, they were a part of master when i created the PR.

[reinink]

@fekle All good, it was a good reminder to actually remove these, as they are no longer used: 0783a42

Also, FYI, I also switched the order of the color and text-decoration-color properties: 1c7a793

[fekle]

@reinink ah, good to know. I wasn't sure how to order them, since not the entire list is ordered alphabetically, so I assumed that the 'longer' color attributes like text-decoration-color and border-color came before the base color attribute. But I guess it doesn't matter much in the end :)

[reinink]

Yeah, oops, I meant to put color first, and then do alphabetical after that. Updated that now: ec911c7

And you're right, doesn't really matter in the end.