Examine source code of URl-Shortcut-Manager

{
  "manifest_version": 2,
  "name": "Shortcut Manager",
  "version": "1.0.0",
  "description": "Manage your shortcuts and bookmarks with categories, export/import functionality, and offline support.",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "notifications",
    "contextMenus",
    "identity",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "Shortcut Manager"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "commands": {
    "open-shortcut-manager": {
      "suggested_key": {
        "default": "Alt+S"
      },
      "description": "Open Shortcut Manager"
    },
    "add-current-page": {
      "suggested_key": {
        "default": "Alt+A"
      },
      "description": "Add current page to shortcuts"
    }
  },
  "applications": {
    "gecko": {
      "id": "shortcut-manager@example.com",
      "strict_min_version": "67.0"
    }
  },
  "author": "Musraf Khan",
  "homepage_url": "https://22cy033.netlify.app/"
}