Examine source code of Post & Comment Scraper

{
  "manifest_version": 3,
  "name": "Post & Comment Scraper",
  "version": "1.5.3",
  "description": "Scrape the current LinkedIn or Facebook post and its comments into JSON.",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "scripting",
    "activeTab",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "https://www.linkedin.com/*",
    "https://www.facebook.com/*",
    "https://m.facebook.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "linkedin-scraper@codex-cli",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [],
        "has_previous_consent": false
      }
    }
  },
  "action": {
    "default_title": "Scrape Post",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "64": "icons/icon-64.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.linkedin.com/*",
        "https://www.facebook.com/*",
        "https://m.facebook.com/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_idle"
    }
  ]
}