[BUG] Trim warnings in CommunityToolkit.Maui 11.1.0

[miko1258]

Is there an existing issue for this?

• I have searched the existing issues

Did you read the "Reporting a bug" section on Contributing file?

• I have read the "Reporting a bug" section on Contributing file: https://github.com/CommunityToolkit/Maui/blob/main/CONTRIBUTING.md#reporting-a-bug

Current Behavior

When publishing an app there are several Trim warnings related to converters.
I can see that the related issue #2447 was closed.

Expected Behavior

When publishing an app there are no Trim warnings related to converters.

Steps To Reproduce

1. Download reproduction sample
2. Publish for iOS using dotnet publish: dotnet publish -f net9.0-ios -c Release -p:ArchiveOnBuild=true -p:RuntimeIdentifier=ios-arm64 maui-blank.csproj
3. The Trim warnings should be generated.
4. Attached the file with all the warnings generated during publish: build.log

Link to public reproduction project repository

https://github.com/miko1258/CommunityTookit-TrimWarnings-11.1.0

Environment

- .NET MAUI CommunityToolkit: 11.1.0
- OS: MacOS 14.5 
- .NET MAUI: 9.0.30

Anything else?

No response