Fix spell error from Segmment to Segment (#20010)

* Fix spell error from Segmment to Segment

* Change for fix the misspell interface in a non breaking way

---------

Co-authored-by: Lucas Bach Bisgaard <lucas.bisgaard@kraftvaerk.com>

Author: rammi987

src/Umbraco.Cms.Api.Delivery/DependencyInjection/UmbracoBuilderExtensions.cs

@@ -51,6 +51,7 @@ public static IUmbracoBuilder AddDeliveryApi(this IUmbracoBuilder builder)
         });
         builder.Services.AddSingleton<IRequestCultureService, RequestCultureService>();
         builder.Services.AddSingleton<IRequestSegmmentService, RequestSegmentService>();
+        builder.Services.AddSingleton<IRequestSegmentService, RequestSegmentService>();
         builder.Services.AddSingleton<IRequestRoutingService, RequestRoutingService>();
         builder.Services.AddSingleton<IRequestRedirectService, RequestRedirectService>();
         builder.Services.AddSingleton<IRequestPreviewService, RequestPreviewService>();

src/Umbraco.Cms.Api.Delivery/Filters/ContextualizeFromAcceptHeadersAttribute.cs

@@ -1,4 +1,4 @@
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Filters;
 using Umbraco.Cms.Core.DeliveryApi;
 using Umbraco.Cms.Core.Models.PublishedContent;
@@ -16,12 +16,12 @@ public ContextualizeFromAcceptHeadersAttribute()
     private sealed class LocalizeFromAcceptLanguageHeaderAttributeFilter : IActionFilter
     {
         private readonly IRequestCultureService _requestCultureService;
-        private readonly IRequestSegmmentService _requestSegmentService;
+        private readonly IRequestSegmentService _requestSegmentService;
         private readonly IVariationContextAccessor _variationContextAccessor;
 
         public LocalizeFromAcceptLanguageHeaderAttributeFilter(
             IRequestCultureService requestCultureService,
-            IRequestSegmmentService requestSegmentService,
+            IRequestSegmentService requestSegmentService,
             IVariationContextAccessor variationContextAccessor)
         {
             _requestCultureService = requestCultureService;

src/Umbraco.Cms.Api.Delivery/Services/RequestSegmentService.cs

@@ -3,7 +3,7 @@
 
 namespace Umbraco.Cms.Api.Delivery.Services;
 
-internal sealed class RequestSegmentService : RequestHeaderHandler, IRequestSegmmentService
+internal sealed class RequestSegmentService : RequestHeaderHandler, IRequestSegmentService, IRequestSegmmentService
 {
     public RequestSegmentService(IHttpContextAccessor httpContextAccessor)
         : base(httpContextAccessor)

src/Umbraco.Core/DeliveryApi/IRequestSegmentService.cs

@@ -1,5 +1,14 @@
-namespace Umbraco.Cms.Core.DeliveryApi;
+namespace Umbraco.Cms.Core.DeliveryApi;
 
+public interface IRequestSegmentService
+{
+    /// <summary>
+    ///     Gets the requested segment from the "Accept-Segment" header, if present.
+    /// </summary>
+    string? GetRequestedSegment();
+}
+
+[Obsolete("This interface is misspelled and will be removed in Umbraco 18. Please use the correct one IRequestSegmentService")]
 public interface IRequestSegmmentService
 {
     /// <summary>