Examine source code of YouTube Shorts Auto Next

{
  "manifest_version": 2,
  "name": "YouTube Shorts Auto Next",
  "version": "1.0.1",
  "description": "Automatically moves to the next YouTube Short when the current one finishes.",
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  },
  "permissions": [
    "storage",
    "tabs",
    "*://www.youtube.com/shorts/*",
    "*://m.youtube.com/shorts/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_title": "Shorts Auto Next",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://m.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c75c7fc7-63c7-4124-9f3b-baafcf1c4bec}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}