Examine source code of GPT Unquote

{
  "manifest_version": 2,
  "name": "Chat Normalizer",
  "version": "1.0.1",
  "description": "Replaces typographic apostrophes with straight apostrophes when copying from ChatGPT.",
  "browser_specific_settings": {
    "gecko": {
      "id": "chat-normalize@ovior.ca",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://chat.openai.com/*",
        "https://chatgpt.com/*"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_start"
    }
  ]
}