Add 'Accept' and 'Content-Type' Headers to all requests

Author: GeoffSelby

src/core/ForgeRequest.js

@@ -7,6 +7,8 @@ class ForgeRequest {
       baseUrl: 'https://forge.laravel.com/api/v1',
       headers: {
         'Authorization': `Bearer ${token}`,
+        'Accept': 'application/json',
+        'Content-Type': 'application/json',
       },
     });
   }