Examine source code of auto apply

{
  "name": "Job Mercenary: auto apply",
  "version": "1.0.2",
  "manifest_version": 3,
  "description": "Streamline your job hunt with Job Mercenary—an efficient extension that automates repetitive application tasks",
  "permissions": [
    "storage",
    "tabs",
    "activeTab"
  ],
  "host_permissions": [
    "https://*.internshala.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "action": {
    "default_popup": "index.html",
    "default_title": "Job Mercenary"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jobmercenary@example.com",
      "strict_min_version": "89.0",
      "manifest_version": 2
    }
  }
}