Bug: Page Management - Add/Edit Page - Switch Theme to Blazor Exception Thrown. (5.1.0)

[thabaum]

Issue

Description

While using the Oqtane Theme changing the theme on a page (edit page or add page component forms) to Blazor Theme generates a Visual Studio error as shown below in the event log and screenshots.
[x] Tested - Issue Does Not Exist Using Blazor Theme for Site Settings

Event Log Error

An Unexpected Error Has Occurred In Oqtane.Modules.Admin.Pages, Oqtane.Client: The component type must implement Microsoft.AspNetCore.Components.IComponent.

System.ArgumentException: The component type must implement Microsoft.AspNetCore.Components.IComponent.
   at Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder.OpenComponent(Int32 sequence, Type componentType)
   at Oqtane.Modules.Admin.Pages.Add.<ThemeSettings>b__42_1(RenderTreeBuilder builder) in C:\Dev\Oqtane\Dev\5.1.0\021824\Oqtane.Client\Modules\Admin\Pages\Add.razor:line 348
   at Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder.AddContent(Int32 sequence, RenderFragment fragment)
   at Oqtane.Modules.Admin.Pages.Add.<BuildRenderTree>b__0_4(RenderTreeBuilder __builder3) in C:\Dev\Oqtane\Dev\5.1.0\021824\Oqtane.Client\Modules\Admin\Pages\Add.razor:line 204
   at Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder.AddContent(Int32 sequence, RenderFragment fragment)
   at Oqtane.Modules.Controls.TabPanel.BuildRenderTree(RenderTreeBuilder __builder) in C:\Dev\Oqtane\Dev\5.1.0\021824\Oqtane.Client\Modules\Controls\TabPanel.razor:line 13
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment, Exception& renderFragmentException)
   
   {"ModuleDefinitionName":"Oqtane.Modules.Admin.Pages, Oqtane.Client","Error":"The component type must implement Microsoft.AspNetCore.Components.IComponent."}

Screenshots

Two issues reported tonight are areas I have not visited previously and are both places recently explored to discover these behaviors that can be easily reproduced.