Add a generator Icon Set config

[mallardduck]

This change adds in a new IconSetConfig that authors can use to more configure their icon sets. With this they have easier to use DX for the options provided by icon set configs.

After this change icon sets can be configured with:

return [
    IconSetConfig::build(
        source: __DIR__.'/../lucide/icons',
        destination: __DIR__.'/../resources/svg',
        safe: true,
        after: $svgNormalization,
    ),
];

Before:

return [
    [
        'source' => __DIR__.'/../lucide/icons',
        'destination' => __DIR__.'/../resources/svg',
        'after' => $svgNormalization,
        'safe' => true,
    ],
];

Example PRs for icon packages:

• https://github.com/mallardduck/blade-lucide-icons/pull/2/files
• https://github.com/ublabs/blade-simple-icons/pull/5/files

[driesvints]

Feel free to undraft this once it's ready 👍

[mallardduck]

Wanted to make some example PRs for Icon packages to validate things more. Got that all sorted and things are looking pretty good, so ready for review!

[driesvints]

I'm going to be honest here: I don't want to maintain this code. Right now I don't see anything bad with the array based config and don't consider an object replacement to be an improvement. So, with all respect to the work you've done, I'm going to decline here, sorry.

[mallardduck]

Fair enough - I feel like array based configs are suboptimal for the reasons I expressed before. Mainly due to there being no method to ensure the array conforms to our expected shape. Thus requires reading the docs for something that could be learnable via better DX. However if you don't see an issue with those areas I won't change your mind. Cheers