Examine source code of quickcopy-pro-sync

{
  "version": "2.0.0",
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_popup": "popup.html"
  },
  "oauth2": {
    "client_id": "122284453797-vm5ghhr7dktfkrhhlroi6hudtbfjakj0.apps.googleusercontent.com",
    "scopes": [
      "openid",
      "https://www.googleapis.com/auth/userinfo.email",
      "https://www.googleapis.com/auth/userinfo.profile"
    ]
  },
  "name": "QuickCopy Pro Cloud Sync",
  "permissions": [
    "storage",
    "contextMenus",
    "notifications",
    "identity"
  ],
  "description": "Premium cloud clipboard with right-click sync and instant search.",
  "developer": {
    "name": "Abhiram Kodicherla",
    "url": "https://quickcopy.abhicm019.workers.dev/"
  },
  "homepage_url": "https://quickcopy.abhicm019.workers.dev/",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "host_permissions": [
    "https://quickcopy.pages.dev/*",
    "https://quickcopy.abhicm019.workers.dev/*",
    "https://firestore.googleapis.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "142.0",
      "id": "quickcopypro-sync-premium@abhicm019.workers.dev",
      "data_collection_permissions": {
        "optional": [
          "technicalAndInteraction"
        ],
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://quickcopy.abhicm019.workers.dev/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}