Compile errors not displayed in output area

Compile errors are no longer displayed in the output area.

Before: 

![image](https://github.com/dotnet/try/assets/547415/79f7d9d1-2e0f-42d2-abd5-0e54089cc407)

Now: 

![image](https://github.com/dotnet/try/assets/547415/b5109e9a-f03a-41bd-969e-ec07c38d180c)
