New code for API 2

app/Http/Kernel.php

@@ -22,6 +22,7 @@ declare(strict_types=1);
 
 namespace FireflyIII\Http;
 
+use FireflyIII\Http\Middleware\AcceptHeaders;
 use FireflyIII\Http\Middleware\Authenticate;
 use FireflyIII\Http\Middleware\Binder;
 use FireflyIII\Http\Middleware\EncryptCookies;
@@ -177,6 +178,7 @@ class Kernel extends HttpKernel
             ],
 
             'api'  => [
+                AcceptHeaders::class,
                 EnsureFrontendRequestsAreStateful::class,
                 'auth:api,sanctum',
                 'bindings',