perf: 改用 Find 提高性能

Author: ArgoZhang

src/BootstrapBlazor/Components/Select/Select.razor.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the Apache 2.0 License
 // See the LICENSE file in the project root for more information.
 // Maintainer: Argo Zhang(argo@live.ca) Website: https://www.blazor.zone
@@ -500,7 +500,7 @@ private async Task OnChange(ChangeEventArgs args)
         var item = GetItemWithEnumValue()
             ?? Rows.Find(i => i.Value == CurrentValueAsString)
             ?? Rows.Find(i => i.Active)
-            ?? Rows.FirstOrDefault(i => !i.IsDisabled);
+            ?? Rows.Find(i => !i.IsDisabled);
         return item;
     }
 }