Examine source code of CodePlay Helper

{
  "manifest_version": 3,
  "name": "CodePlay Helper",
  "version": "1.4",
  "description": "Submit code to Codeforces and LeetCode directly from CodePlay Editor.",
  "permissions": [
    "cookies",
    "storage",
    "notifications",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "https://leetcode.com/*",
    "https://codeforces.com/*",
    "https://code-editor-phi-two.vercel.app/*",
    "http://localhost/*",
    "http://127.0.0.1/*",
    "http://localhost:5173/*",
    "http://127.0.0.1:5173/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://code-editor-phi-two.vercel.app/*",
        "http://localhost/*",
        "http://127.0.0.1/*",
        "http://localhost:5173/*",
        "http://127.0.0.1:5173/*",
        "https://codeforces.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon128.png",
      "48": "icon128.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon128.png",
    "48": "icon128.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "codeplay-helper@code-editor.com",
      "strict_min_version": "100.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}