Examine source code of justunepub Helper

{
  "manifest_version": 3,
  "name": "justunepub Helper",
  "short_name": "justunepub",
  "version": "0.1.0",
  "description": "Assistant de visionnage de publicités pour justunepub. Ouvre les publicités en arrière-plan pendant 30s puis les ferme automatiquement.",
  "permissions": [
    "tabs",
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "*://*.clictune.com/*",
    "*://*.dlink4.com/*",
    "*://*.dlink5.com/*",
    "*://*.dlink6.com/*",
    "*://*.dlink7.com/*",
    "*://*.dlink8.com/*",
    "*://*.dlink9.com/*",
    "*://*.dlink10.com/*",
    "https://justunepub.vercel.app/*",
    "https://*.justunepub.vercel.app/*"
  ],
  "background": {
    "scripts": [
      "background/index.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.clictune.com/*",
        "*://*.dlink4.com/*",
        "*://*.dlink5.com/*",
        "*://*.dlink6.com/*",
        "*://*.dlink7.com/*",
        "*://*.dlink8.com/*",
        "*://*.dlink9.com/*",
        "*://*.dlink10.com/*"
      ],
      "js": [
        "content/clictune-runner.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://justunepub.vercel.app/*",
        "https://*.justunepub.vercel.app/*"
      ],
      "js": [
        "content/site-bridge.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_title": "justunepub Helper",
    "default_icon": {
      "16": "assets/icon-16.png",
      "48": "assets/icon-48.png",
      "128": "assets/icon-128.png"
    }
  },
  "icons": {
    "16": "assets/icon-16.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "helper@justunepub.app",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    }
  },
  "data_collection_permissions": {
    "required": [
      "authenticationInfo"
    ]
  }
}