Examine source code of No Shorts

{
  "name": "No Shorts",
  "description": "No more YouTube Shorts!",
  "version": "2.0",
  "developer": {
    "name": "Mücahit Kurtlar",
    "url": "https://mucahitkurtlar.github.io/"
  },
  "homepage_url": "https://github.com/mucahitkurtlar/no-shorts",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "main.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e84b3165-4f36-45ca-8e75-449066a9fe34}"
    }
  }
}