Examine source code of Quick Dictionary

{
  "manifest_version": 3,
  "name": "Quick Dictionary",
  "version": "1.0",
  "description": "You are a double click away from the meaning of any word.",
  "icons": {
    "48": "icons/Dictionary-48.png",
    "64": "icons/Dictionary-64.png",
    "96": "icons/Dictionary-96.png",
    "128": "icons/Dictionary-128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "*://api.dictionaryapi.dev/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "krichenyassine22@gmail.com"
    }
  }
}