Examine source code of No YouTube Shorts

{
  "manifest_version": 3,
  "name": "No YouTube Shorts",
  "version": "2.1",
  "description": "Shorts Blocker for YouTube removes Shorts videos from search, recommendations, and filters, creating a cleaner browsing experience. Lightweight, efficient, and hassle-free!",
  "permissions": [
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "*://www.youtube.com/shorts/*"
  ],
  "background": {
    "page": "background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "action": {
    "default_icon": {
      "16": "icon.png",
      "48": "icon.png",
      "128": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4569ff71-203c-4f8f-832c-8c3d659ec7b7}"
    }
  }
}