Support for arbitrary Jupyter kernels in Positron notebooks

[edavidaja]

System details:

Positron and OS details:

Positron Version: 2024.10.0 (Universal) build 13
Code - OSS Version: 1.93.0
Commit: 34b5c57cf211bcaf1bc48f75a8cd8d0b4378e5f5
Date: 2024-10-03T16:46:35.447Z
Electron: 30.4.0
Chromium: 124.0.6367.243
Node.js: 20.15.1
V8: 12.4.254.20-electron.0
OS: Darwin arm64 23.6.0

Describe the issue:

deno offers a jupyter kernel enabling interactive execution of typescript and javascript. Positron does not display that such a kernel is available after it has been installed.

Steps to reproduce the issue:

In the terminal, run:

1. deno jupyter --install

From the Positron Command Palette:
2. Create: New Jupyter Notebook
3. Notebook: Select Notebook Kernel > Select Another Kernel

Only "Python Environments" and "R Environments" are displayed, the deno kernel is not viewable in either

Expected or desired behavior:

The deno kernel is available to select as an option

Were there any error messages in the UI, Output panel, or Developer Tools console?

[juliasilge]

Related to #3585

[Marhc]

Another Deno notebook user waiting for the feature.