Upgrade the package to support Filament V4

[TomEasterbrook]

Hello,

I’m currently in the process of updating my own Filament app to experiment with version 4 (beta), and I noticed that this package hadn’t yet been upgraded—so I thought I’d give it a go.

Since this new version introduces breaking changes, you may want to consider tagging it as a separate release.

✅ Actions Taken:
• Ran and then removed the Filament migration tool
• Ran the Tailwind upgrade tool and updated npm scripts to reflect the new CLI namespace
• Adjusted one styling class to remove the !important attribute, which appears to no longer be supported
• Recompiled all styles and scripts successfully
• All tests are passing

I’ve also tested this locally in the app I’m currently upgrading, and everything looks good from my end. However, you may want to review it to ensure it aligns with your preferences and standards.

Let me know if there’s anything else I can do to help get this approved!

Best regards,
Tom

[Devonab]

Thank you very much. I must admit I haven't yet had the time to look into the V4 and the changes it entails, but I already thank you in advance for your contribution. I will take a look at it soon so that I can merge your contribution. 😊