Examine source code of prompt-injection-detector

{
  "manifest_version": 3,
  "name": "Hidden Prompt Injection Detector",
  "version": "1.0.0",
  "description": "Detects hidden prompt injection instructions that might manipulate AI models like Copilot.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "action": {
    "default_title": "AI Shield",
    "default_popup": "sidepanel.html",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "aishield@extension",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "minimum_chrome_version": "114"
}