Examine source code of Zhapio

{
  "manifest_version" : 3 ,
  "name" : "Zhapio - Gerenciador de WhatsApp Business",
  "description" : "Potencialize sua experiência no WhatsApp com recursos de CRM e integração com Facebook Leads",
  "version" : "1.0.50",
  "icons" : {
    "16" : "icon16.png",
    "32" : "icon32.png",
    "48" : "icon48.png",
    "128" : "icon128.png"
  },
  "permissions" : [
    "storage" ,
    "tabs" ,
    "alarms" 
  ],
  "host_permissions" : [
    "https://web.whatsapp.com/*" ,
    "https://*.whatsapp.com/*" ,
    "https://zhapio.com/*" ,
    "https://*.zhapio.com/*" ,
    "https://*.supabase.co/*" 
  ],
  "action" : {
    "default_icon" : {
      "16" : "icon16.png",
      "32" : "icon32.png"
    }
  },
  "web_accessible_resources" : [
    {
      "resources" : [
        "injected.js" ,
        "content.css" 
      ],
      "matches" : [
        "https://web.whatsapp.com/*" 
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@zhapio.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo",
          "personalCommunications"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "content_scripts" : [
    {
      "matches" : [
        "https://web.whatsapp.com/*" 
      ],
      "css" : [
        "content-scripts/content.css" 
      ],
      "js" : [
        "content-scripts/content.js" 
      ]
    },
    {
      "matches" : [
        "https://zhapio.com/*" 
      ],
      "run_at" : "document_start" ,
      "js" : [
        "content-scripts/web-auth-bridge.js" 
      ]
    }
  ]
}