Remove unused import, fix casing of startup wizard POST parameters

Jellyfin.Api/Controllers/StartupController.cs

@@ -6,7 +6,6 @@ using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Library;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using Newtonsoft.Json;
 
 namespace Jellyfin.Api.Controllers
 {
@@ -61,18 +60,18 @@ namespace Jellyfin.Api.Controllers
         /// <summary>
         /// Endpoint for updating the initial startup wizard configuration.
         /// </summary>
-        /// <param name="uiCulture">The UI language culture.</param>
-        /// <param name="metadataCountryCode">The metadata country code.</param>
-        /// <param name="preferredMetadataLanguage">The preferred language for metadata.</param>
+        /// <param name="UICulture">The UI language culture.</param>
+        /// <param name="MetadataCountryCode">The metadata country code.</param>
+        /// <param name="PreferredMetadataLanguage">The preferred language for metadata.</param>
         [HttpPost("Configuration")]
         public void UpdateInitialConfiguration(
-            [FromForm] string uiCulture,
-            [FromForm] string metadataCountryCode,
-            [FromForm] string preferredMetadataLanguage)
+            [FromForm] string UICulture,
+            [FromForm] string MetadataCountryCode,
+            [FromForm] string PreferredMetadataLanguage)
         {
-            _config.Configuration.UICulture = uiCulture;
-            _config.Configuration.MetadataCountryCode = metadataCountryCode;
-            _config.Configuration.PreferredMetadataLanguage = preferredMetadataLanguage;
+            _config.Configuration.UICulture = UICulture;
+            _config.Configuration.MetadataCountryCode = MetadataCountryCode;
+            _config.Configuration.PreferredMetadataLanguage = PreferredMetadataLanguage;
             _config.SaveConfiguration();
         }