docs: fix add-content-to-dialog.md

[draptik]

Fix namespace

[stevemonaco]

This was broken in a prior PR "fix". Can you mention somewhere that the UserControl created prior in the same doc should be within the Avalonia.MusicStore.Views namespace?

[draptik]

This was broken in a prior PR "fix". Can you mention somewhere that the UserControl created prior in the same doc should be within the Avalonia.MusicStore.Views namespace?

This seems to be the case already:

Or did I miss something?

[stevemonaco]

Not exactly correct. There's a current issue with folder namespaces with inconsistency between the AvaloniaVS extension and avalonia-dotnet-templates. I'm still waiting for confirmation and then I'll probably close the related PRs in this repo and PR it myself so I can be more thorough across all of the guided tutorials. AvaloniaUI/avalonia-dotnet-templates#255