feat: add jspaint as built-in app

[S33G]

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✅ Salazareo
❌ S33G
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[Salazareo]

Hi @S33G unfortunately I don't think we can merge this.

While its really cool it doesn't actually interface with puter at all.

you're ofcourse able to add it in your own deployment, or as a 3rd party app in puter.com, but we probably can't have it as a recommended app universally