Examine source code of Upwork Job Scraper + Webhook

{
  "manifest_version": 3,
  "name": "Upwork Job Scraper",
  "description": "Automatically scrape Upwork job listings and send them to a webhook.",
  "version": "3.3.2",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "scripting",
    "alarms",
    "notifications"
  ],
  "host_permissions": [
    "https://www.upwork.com/*",
    "https://*.ingest.sentry.io/*"
  ],
  "action": {
    "default_title": "Upwork Job Scraper",
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "96": "icon/96.png",
      "128": "icon/128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "upwork-job-scraper@richardadonnell.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "content_scripts": []
}