Javascript kernel missing in new C# .dib notebooks

[marckruzik]

Describe the bug

The javascript Kernel does not appear in the list of available kernels.

Steps to reproduce:

• create a new notebook .dib, C#
• save the notebook
• close VS Code
• open notebook with VS Code
• the notebook is open, with one empty C# cell
• try to change the cell kernel
• javascript is absent from the kernel list

Please complete the following:

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ): Version: 1.0.553001+f0ec3826954ea1ab829b435418328e4aa8db58e2

• OS
  • [ ] Windows 11
  • [x] Windows 10
  • [ ] macOS
  • [ ] Linux (Please specify distro)
  • [ ] iOS
  • [ ] Android
  • Browser
  • [ ] Chrome
  • [ ] Edge
  • [ ] Firefox
  • [ ] Safari
  • Frontend
  • [ ] Jupyter Notebook
  • [ ] Jupyter Lab
  • [ ] nteract
  • [x] Visual Studio Code
  • [ ] Visual Studio Code Insiders
  • [ ] Visual Studio
  • [ ] Other (please specify)

[jonsequitur]

I can repro this and while I dig into it, here's a workaround:

1) Run a cell with the #!javascript magic command.

2) JavaScript nows appears in the cell kernel picker, and is persistent after the notebook is closed and reopened.