Examine source code of ChatGPT History Manager

{
  "manifest_version": 3,
  "name": "ChatGPT History Manager",
  "version": "1.0.0",
  "description": "Manage, search, sort, archive and organize ChatGPT conversations with powerful batch actions.",
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "https://chatgpt.com/*",
    "https://chat.openai.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_title": "ChatGPT History Manager",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://chatgpt.com/*",
        "https://chat.openai.com/*"
      ],
      "js": [
        "content/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content/injected.js"
      ],
      "matches": [
        "https://chatgpt.com/*",
        "https://chat.openai.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "chatgpt-history-manager@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}