fix: fix duplication of localized resource names.

aspnet-core/modules/localization/LINGYUN.Abp.AspNetCore.Mvc.Localization/LINGYUN/Abp/AspNetCore/Mvc/Localization/LanguageAppService.cs

@@ -27,7 +27,10 @@ namespace LINGYUN.Abp.AspNetCore.Mvc.Localization
                     UiCultureName = l.UiCultureName,
                     DisplayName = l.DisplayName,
                     FlagIcon = l.FlagIcon
-                }).OrderBy(l => l.CultureName).ToList());
+                })
+                .OrderBy(l => l.CultureName)
+                .DistinctBy(l => l.CultureName)
+                .ToList());
         }
     }
 }

aspnet-core/modules/localization/LINGYUN.Abp.AspNetCore.Mvc.Localization/LINGYUN/Abp/AspNetCore/Mvc/Localization/ResourceAppService.cs

@@ -21,12 +21,16 @@ namespace LINGYUN.Abp.AspNetCore.Mvc.Localization
 
         public virtual Task<ListResultDto<ResourceDto>> GetListAsync()
         {
-            var resources = _localizationOptions.Resources.Select(x => new ResourceDto
+            var resources = _localizationOptions
+                .Resources
+                .Select(x => new ResourceDto
                 {
                     Name = x.Value.ResourceName,
                     DisplayName = x.Value.ResourceName,
                     Description = x.Value.ResourceName,
-            }).OrderBy(l => l.Name);
+                })
+                .OrderBy(l => l.Name)
+                .DistinctBy(l => l.Name);
 
             return Task.FromResult(new ListResultDto<ResourceDto>(resources.ToList()));
         }