Implement Crash Report Type

Ref: https://wicg.github.io/crash-reporting/#crashreportbody

Looks like this:

[
    {
      "body": {
        "reason": "unresponsive"
      },
      "type": "crash",
      "url": "https://cloud.leon.wtf/apps/files/favorites/430391?dir=/Netzlaufwerk%20Leon/Privat%20und%20Freizeit/Bilder/Mobile%20Bookmarks&openfile=true",
      "user_agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
      "age": 17
    }
  ]