Use UseMaui=true in a razor component breaks the _content/PackageId

Description

Adding <UseMaui>true</UseMaui> to a razor component library causes the static we assets not to be packaged correctly.

I think this has to do with the fact our maui blazor targets assume an app and thus force set the BasePath to be / instead of first checking the context - final app or library,

Steps to Reproduce

1. Create a maui blazor app that references a plain razor component library
2. Observe a successful run
3. Add UseMaui=true to the razor compoent
4. Observe that the razor component no longer loads

Expected Behavior

Actual Behavior

Basic Information

• Version with issue:
• Last known good version:
• IDE:
• Platform Target Frameworks:
  • iOS:
  • Android:
  • UWP:
• Android Support Library Version:
• Nuget Packages:
• Affected Devices:

Screenshots

Reproduction Link

Workaround

[Eilon]

The workaround is to:

1. Place all the Razor code (*.razor files) in a regular Razor Class Library (RCL)
2. The .NET MAUI library can have <UseMaui>true</UseMaui> and reference the RCL for whatever types it needs

[densen2014]

try only use maui in ios and mac ,

	<PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst' or $([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">
		<UseMaui>true</UseMaui>	
		<SingleProject>true</SingleProject>
	</PropertyGroup>

and

    <!--启用maui支持,直接忽略共享库并到主项目,所以不用引用共享库名称-->
    <link href="css/app.css" rel="stylesheet" />
    <!--不启用maui支持,引用共享库名称的css-->
    <link href="_content/BlazorHybrid.Shared/css/app.css" rel="stylesheet" />