⚡️ Warn instead of raising the exception when ipylab is not installed

[Koncopd]

No description provided.

[github-actions]

🚀 Deployed on https://663b6d70d7d2d913d59bb384--nbproject-ifta.netlify.app

[codecov]

Codecov Report

Attention: Patch coverage is 63.88889% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 88.53%. Comparing base (3f635d1) to head (1b2a639).

Files	Patch %	Lines
nbproject/dev/_jupyter_lab_commands.py	50.00%	7 Missing ⚠️
nbproject/dev/_jupyter_communicate.py	20.00%	4 Missing ⚠️
nbproject/__init__.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #283      +/-   ##
==========================================
- Coverage   89.35%   88.53%   -0.83%     
==========================================
  Files          24       24              
  Lines        1033     1055      +22     
==========================================
+ Hits          923      934      +11     
- Misses        110      121      +11     

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[falexwolf]

Looks good to me! Have you tested in an environment in which ipylab isn't installed?

[Koncopd]

Not yet, will do.

[Koncopd]

Ok, everything seems to be ok.