Add Filament v4 support (v3.0.0)

[arbazajaz]

🚀 Filament v4 Support (v3.0.0)

This PR adds full compatibility with Filament v4.

Changes

• Updated plugin registration to Filament v4
• Updated composer requirements
• Refactored deprecated Filament v3 APIs
• Tested locally with Laravel 12 + Filament v4

Testing

• Local Laravel app
• Activity log UI verified
• No runtime errors

Notes

• Backward compatibility with Filament v3 is NOT included

[howdu]

Thanks appreciate the v5 support @arbazajaz.

I noticed one issue that needed to be the same as Filament action in src/Actions/Concerns/ActionContent.php

Access level to Rmsramos\Activitylog\Actions\ActivityLogTimelineSimpleAction::getSchema() must be public (as in class Filament\Actions\Action)

public function getSchema(Schema $schema): ?Schema
    {
        return $schema->components([
            // ...
        ]);
    }

[alexsyvolap]

Hey! I wrote in another PR in this repo but got no reaction. Guys, do you have an alternative to this package that is supported and that I can migrate to? I’ve been waiting over 2 months for Filament 4+ support to be merged.
It looks like the repository may no longer be actively maintained, so I’m not sure it makes sense to rely on it going forward. I also tried reaching out directly via the email listed in the author’s profile regarding the Filament 4+ support merge, but haven’t received a response there either.
UPD for @arbazajaz : it looks like the Blade components also need to be updated to support Filament 4+. Specifically here

Unable to locate a class or view for component [filament-infolists::entries.placeholder].

[jangidgirish]

The maintainer seems to have abandoned this repo. I used this package in my Backend 3.x setup, and I have now upgraded to FilamentPHP 4.x; however, this package is not compatible with version 4.x. I will likely have to find an alternative :)