Examine source code of Real Estate Comments

{
  "manifest_version": 3,
  "name": "Real Estate Comments",
  "version": "1.4.2",
  "description": "Adds a comment section on realestate.com.au and domain.com.au property listings",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://www.realestate.com.au/*",
    "https://realestate.com.au/*",
    "https://www.domain.com.au/*",
    "https://domain.com.au/*"
  ],
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.realestate.com.au/*",
        "https://realestate.com.au/*",
        "https://www.domain.com.au/*",
        "https://domain.com.au/*"
      ],
      "js": [
        "content.bundle.js"
      ],
      "css": [
        "src/styles/main.css"
      ],
      "run_at": "document_end"
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "real-estate-comments@zevnda.com"
    }
  }
}