Examine source code of OTP Notifications

{
  "manifest_version": 2,
  "name": "Kia OTP Notifications",
  "version": "2.0.2",
  "description": "Displays real-time OTP notifications from Firebase on Kia DMS site",
  "permissions": [
    "storage",
    "https://dms.kiaindia.net/*",
    "https://dmsotp-7551b-default-rtdb.asia-southeast1.firebasedatabase.app/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://dms.kiaindia.net/cmm/cmmi/selectLoginMain.dms",
        "https://dms.kiaindia.net/cmm/cmmi/selectLoginAction.json"
      ],
      "js": [
        "firebase-app-compat.js",
        "firebase-database-compat.js",
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "logo.png",
    "Logo.png",
    "LOGO.png",
    "team-logo.png",
    "Team-Incheon-Logo.png",
    "panel.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "inckiacc4@gmail.com",
      "strict_min_version": "58.0"
    }
  }
}