chore(deps): update tailwindcss to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
tailwindcss (source)	3.4.17 -> 4.0.0

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Release Notes

tailwindlabs/tailwindcss (tailwindcss)

v4.0.0

Compare Source

[4.0.0] - 2025-01-21

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Configuration

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[bmulholland]

I just shipped a v4 upgrade for work. The migration script is pretty good; it missed a few edge cases, but the process was relatively painless. There were a few visual regressions caused by legit issues (like logic that accidentally overlapped in some cases, adding two different height/width values).

Gitify doesn't have visual regression set up so there's a little risk with this upgrade, I guess.

I'd suggest just run Tailwind's npx upgrade, checking the diffs manually, and then just shipping it.

[setchy]

@bmulholland would you like to help with this one?

[bmulholland]

I'm pretty heavily time limited these days, but I'll give it a shot right now

[bmulholland]

Superseded by #1771

[renovate]

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