fix(Button): fix accessibility issues

[jsulpis]

Summary

Fix Button accessibility issues. One remaining issue is caused by the colors from the base theme which has a bad contrast.

[changeset-bot]

🦋 Changeset detected

Latest commit: a2ede52

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@ultraviolet/ui	Patch
@ultraviolet/form	Patch
@ultraviolet/nextjs	Patch

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.97%. Comparing base (89671b5) to head (a2ede52).

Additional details and impacted files

@@             Coverage Diff             @@
##           button-fix    #6870   +/-   ##
===========================================
  Coverage       90.97%   90.97%           
===========================================
  Files             572      572           
  Lines           10526    10526           
  Branches         3797     3819   +22     
===========================================
  Hits             9576     9576           
  Misses            950      950           

Files with missing lines	Coverage Δ
packages/ui/src/components/Button/index.tsx	100.00% <100.00%> (ø)

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