fix(deps): update tailwindcss monorepo to v4.1.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@tailwindcss/postcss (source)	4.1.5 -> 4.1.6
@tailwindcss/vite (source)	4.1.5 -> 4.1.6
tailwindcss (source)	4.1.5 -> 4.1.6

---

Release Notes

tailwindlabs/tailwindcss (@​tailwindcss/postcss)

v4.1.6

Compare Source

Added

• Upgrade: Automatically convert arbitrary values to named values when possible (e.g. h-[1lh] to h-lh) (#​17831, #​17854)
• Upgrade: Update dependencies in parallel for improved performance (#​17898)
• Add detailed logging about @source directives, discovered files and scanned files when using DEBUG=* (#​17906, #​17952)
• Add support for generating source maps in development (#​17775)

Fixed

• Ensure negative arbitrary scale values generate negative values (#​17831)
• Fix HAML extraction with embedded Ruby (#​17846)
• Don't scan files for utilities when using @reference (#​17836)
• Fix incorrectly replacing _ with in arbitrary modifier shorthand bg-red-500/(--my_opacity) (#​17889)
• Don't scan .log files for classes by default (#​17906)
• Ensure that custom utilities applying other custom utilities don't swallow nested @apply rules (#​17925)
• Download platform specific package if optionalDependencies are skipped (#​17929)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.