Examine source code of Phishguard-Security

{
  "manifest_version": 3,
  "name": "Phishguard",
  "description": "One-click report any suspicious email to your Phishguard tenant. Works in Gmail, Roundcube (cPanel), Horde, Zimbra and more.",
  "version": "0.3.0",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "Phishguard",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "service_worker": "service-worker-loader.js",
    "type": "module",
    "scripts": [
      "service-worker-loader.js"
    ]
  },
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab",
    "alarms",
    "notifications"
  ],
  "commands": {
    "report-current-message": {
      "suggested_key": {
        "default": "Ctrl+Shift+P",
        "mac": "Command+Shift+P"
      },
      "description": "Report the currently-open email to Phishguard"
    }
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/bridge.ts-loader-DjRhnfwa.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle"
    },
    {
      "js": [
        "assets/universal-entry.ts-loader-HMY3HHzH.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://mail.google.com/*"
      ],
      "run_at": "document_idle",
      "world": "MAIN"
    },
    {
      "js": [
        "assets/gmail-entry.ts-loader-D7MVimdY.js"
      ],
      "matches": [
        "*://mail.google.com/*"
      ],
      "run_at": "document_idle",
      "world": "MAIN"
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "icons/*",
        "assets/reports-cache-B5vNhjsb.js",
        "assets/bridge.ts-Ird4Oglm.js",
        "assets/report-flow-AjSzJhwo.js",
        "assets/links-pzqJ-mIs.js",
        "assets/universal-entry.ts-DikFjEa6.js"
      ],
      "use_dynamic_url": false
    },
    {
      "matches": [
        "*://mail.google.com/*"
      ],
      "resources": [
        "assets/report-flow-AjSzJhwo.js",
        "assets/links-pzqJ-mIs.js",
        "assets/gmail-entry.ts-DiC8t7Zy.js"
      ],
      "use_dynamic_url": false
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; base-uri 'self';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "phishguard-extension@socshield.dz",
      "strict_min_version": "128.0"
    }
  }
}