Jupyter Notebooks (ipynb) should use the JSON formatter by default

[SethFalco]

Environment data

• VS Code version: 1.65.0-insider
• Jupyter Extension version (available under the Extensions sidebar): v2022.1.1001614873
• Python Extension version (available under the Extensions sidebar): v2021.12.1559732655
• OS (Windows | Mac | Linux distro) and version: Debian 11.1
• Python and/or Anaconda version: 3.9.2
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): NA
• Jupyter server running: N/A

Expected behaviour

By default, I would expect to be able to open a Jupyter Notebook file in the "Text Editor", then do the Format Document command to beautify the JSON file.

I have also tried setting the following setting, but it doesn't want to format unless I specifically set the language to JSON in the editor.

  "[jupyter]": {
    "editor.defaultFormatter": "vscode.json-language-features"
  },

Actual behaviour

Visual Studio Code - Insiders

There is no formatter for 'jupyter' files installed.
Install Formatters… | Cancel

Steps to reproduce:

1. Open a ipynb file in Visual Studio Code in the Text Editor. (Right-Click → Open With… → Text Editor)
2. Try to format it. (CTRL + SHIFT + P → Format Document)

[greazer]

This is about formatting the ipynb as json when the user opens the ipynb as text. It's not something that we can fix in the jupyter extension.

[DonJayamanne]

@rebornix assigning to you as this was assigned to me when this was transferred.

[rebornix]

This should be possible now as we dropped the ipynb json language.