Examine source code of ChatGPT Finish Notifier

{
  "manifest_version": 3,
  "name": "ChatGPT Finish Notifier",
  "short_name": "ChatGPT Notifier",
  "version": "1.0.0",
  "description": "Plays a notification sound when ChatGPT finishes generating a response. Runs entirely locally using a MutationObserver with no data collection, telemetry, tracking, or external communication.",
  "author": "DeepWarrior",
  "homepage_url": "https://github.com/borrellocoin/chatgpt-finish-notifier",
  "developer": {
    "name": "DeepWarrior"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "host_permissions": [
    "https://chatgpt.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://chatgpt.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "audio/ding.mp3"
      ],
      "matches": [
        "https://chatgpt.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "chatgpt-finish-notifier@deepwarrior.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}