Donut Chart - Statistic Broken

### Describe the bug

The DonutConfig Statistic variable is broken due to OneOf.

### Steps to reproduce (please include code)
Go to https://antblazor.com/en-US/charts/pie
Scroll down to Donut
Click Example 2 or 3

### Exceptions (if any)
crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
Unhandled exception rendering component: Cannot return as T1 as result is T0
System.InvalidOperationException: Cannot return as T1 as result is T0
at OneOf.OneOf`2[[System.String, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutStatisticContent, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].get_AsT1()
at System.Text.Json.JsonPropertyInfo`1[[AntDesign.Charts.DonutStatisticContent, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].GetMemberAndWriteJson(Object obj, WriteStack& state, Utf8JsonWriter writer)
at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[[OneOf.OneOf`2[[System.String, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutStatisticContent, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], OneOf, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnTryWrite(Utf8JsonWriter writer, OneOf`2 value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[OneOf.OneOf`2[[System.String, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutStatisticContent, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], OneOf, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].TryWrite(Utf8JsonWriter writer, OneOf`2& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.JsonPropertyInfo`1[[OneOf.OneOf`2[[System.String, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutStatisticContent, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], OneOf, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].GetMemberAndWriteJson(Object obj, WriteStack& state, Utf8JsonWriter writer)
at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[[AntDesign.Charts.DonutViewConfigStatistic, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnTryWrite(Utf8JsonWriter writer, DonutViewConfigStatistic value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[AntDesign.Charts.DonutViewConfigStatistic, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].TryWrite(Utf8JsonWriter writer, DonutViewConfigStatistic& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.JsonPropertyInfo`1[[AntDesign.Charts.DonutViewConfigStatistic, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].GetMemberAndWriteJson(Object obj, WriteStack& state, Utf8JsonWriter writer)
at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1[[AntDesign.Charts.DonutConfig, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnTryWrite(Utf8JsonWriter writer, DonutConfig value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[AntDesign.Charts.DonutConfig, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].TryWrite(Utf8JsonWriter writer, DonutConfig& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[AntDesign.Charts.DonutConfig, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].TryWriteAsObject(Utf8JsonWriter writer, Object value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter writer, Object& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.Converters.ArrayConverter`2[[System.Object[], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnWriteResume(Utf8JsonWriter writer, Object[] value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.Converters.IEnumerableDefaultConverter`2[[System.Object[], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnTryWrite(Utf8JsonWriter writer, Object[] value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[System.Object[], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TryWrite(Utf8JsonWriter writer, Object[]& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[System.Object[], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].WriteCore(Utf8JsonWriter writer, Object[]& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.JsonSerializer.WriteCore[Object[]](JsonConverter jsonConverter, Utf8JsonWriter writer, Object[]& value, JsonSerializerOptions options, WriteStack& state)
at System.Text.Json.JsonSerializer.WriteCore[Object[]](Utf8JsonWriter writer, Object[]& value, Type inputType, JsonSerializerOptions options)
at System.Text.Json.JsonSerializer.Serialize[Object[]](Object[]& value, Type inputType, JsonSerializerOptions options)
at System.Text.Json.JsonSerializer.Serialize[Object[]](Object[] value, JsonSerializerOptions options)
at Microsoft.JSInterop.JSRuntime.InvokeAsync[Object](Int64 targetInstanceId, String identifier, CancellationToken cancellationToken, Object[] args)
at Microsoft.JSInterop.JSRuntime.d__15`1[[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)
at AntDesign.Charts.ChartComponentBase`2.d__46[[System.Collections.Generic.IEnumerable`1[[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutConfig, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()
at AntDesign.Charts.ChartComponentBase`2.d__43[[System.Collections.Generic.IEnumerable`1[[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[AntDesign.Charts.DonutConfig, AntDesign.Charts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()

### Further technical details
- AntDesign Nuget Package version: 0.7 nightly
- Include the output of `dotnet --info`
- The IDE (VS / VS Code/ VS4Mac) you're running on, and it's version