Fix base type of UIErrorEventArgs

src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Rendering/EventForDotNet.ts

@@ -248,7 +248,7 @@ interface UIDataTransferItem {
   type: string;
 }
 
-interface UIErrorEventArgs extends UIProgressEventArgs {
+interface UIErrorEventArgs extends UIEventArgs {
 }
 
 interface UIFocusEventArgs extends UIEventArgs {

src/Microsoft.AspNetCore.Blazor/UIEventArgs.cs

@@ -168,7 +168,7 @@ namespace Microsoft.AspNetCore.Blazor
     /// <summary>
     /// Supplies information about an error event that is being raised.
     /// </summary>
-    public class UIErrorEventArgs : UIProgressEventArgs
+    public class UIErrorEventArgs : UIEventArgs
     {
     }