Examine source code of FilterLinked

{
  "manifest_version": 2,
  "name": "FilterLinked",
  "version": "3.1.4",
  "description": "Advanced AI content detection and filtering for LinkedIn feeds powered by Copyleaks.",
  "browser_specific_settings": {
    "gecko": {
      "id": "linkedin-ai-filter@replit.com"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "https://www.linkedin.com/*",
    "https://*.supabase.co/*",
    "https://*.filterlinked.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "LinkedIn AI Filter",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "icons/icon48.png"
  ]
}