.NET MAUI App build fails when project references Visual Basic netstandard2.0 or net7.0 library

### Description

Build fails for iOS and Mac when a Maui project references a Visual Basic netstandard2.0 or net7.0 library.

1>------ Build started: Project: MauiBugVbClassLib, Configuration: Debug Any CPU ------
1>C:\Program Files\dotnet\packs\Microsoft.MacCatalyst.Sdk\15.4.2372\targets\Xamarin.Shared.Sdk.targets(1916,2): error MSB4019: The imported project "C:\Program Files\dotnet\packs\Microsoft.MacCatalyst.Sdk\15.4.2372\tools\msbuild\MacCatalyst\Xamarin.MacCatalyst.VB.targets" was not found. Confirm that the expression in the Import declaration "C:\Program Files\dotnet\packs\Microsoft.MacCatalyst.Sdk\15.4.2372\\tools\msbuild\MacCatalyst\Xamarin.MacCatalyst.VB.targets" is correct, and that the file exists on disk.
1>Done building project "ClassLibrary1.vbproj" -- FAILED.

1>C:\Program Files\dotnet\packs\Microsoft.iOS.Sdk\16.0.1478\targets\Xamarin.Shared.Sdk.targets(1904,2): error MSB4019: The imported project "C:\Program Files\dotnet\packs\Microsoft.iOS.Sdk\16.0.1478\tools\msbuild\iOS\Xamarin.iOS.VB.targets" was not found. Confirm that the expression in the Import declaration "C:\Program Files\dotnet\packs\Microsoft.iOS.Sdk\16.0.1478\\tools\msbuild\iOS\Xamarin.iOS.VB.targets" is correct, and that the file exists on disk.
1>Done building project "ClassLibrary1.vbproj" -- FAILED.

### Steps to Reproduce

Add a reference to a VB netstandard2.0 or net7.0 library.
Build.

### Link to public reproduction project repository

https://github.com/rmotta01/MauiBugVbClassLib

### Version with bug

7.0 (current)

### Last version that worked well

Unknown/Other

### Affected platforms

iOS, macOS

### Affected platform versions

ios 11, maccatalyst 13.1

### Did you find any workaround?

_No response_

### Relevant log output

_No response_

Start with the public reproduction repository and build the MauiBugVbClassLib project for iOS and MacCatalyst. Inspect the reported Xamarin.iOS.VB.targets and Xamarin.MacCatalyst.VB.targets imports in the SDK build output. Done means the MAUI project can reference the Visual Basic netstandard2.0 or net7.0 library and build successfully for both platforms.

Written by the indexing model from the issue text.