What's Changed

• Tailwind instructions for upgrade guide and README by @mitkins in https://github.com/petalframework/petal_components/pull/416
• Address CSS anomolies after Tailwind 4 upgrade by @mitkins in https://github.com/petalframework/petal_components/pull/417

Full Changelog: https://github.com/petalframework/petal_components/compare/v2.9.0...v2.9.1