now that conda-forge is fully independent from anaconda defaults channels on all platforms, remove defaults to simplify updating environment
now completely aligned with the conda-forge eco-system
set condarc file in ROOT_PREFIX during installation: if the user doesn't already have a condarc file or as long as the user doesn't overwrite the setting, the setting of the condarc defined in construct.yaml will be used. Setting additional channel after the installation will add the defaults channel and this is fixed by https://github.com/conda/conda/pull/10479.
Jupyterlab 3: building extension are not required anymore
remove nodejs (avoid issue with long path on windows)
remove building extension in post-install scripts (faster)
conda-forgeis fully independent from anacondadefaultschannels on all platforms, removedefaultsto simplify updating environmentcondarcfile inROOT_PREFIXduring installation: if the user doesn't already have acondarcfile or as long as the user doesn't overwrite the setting, the setting of thecondarcdefined inconstruct.yamlwill be used. Setting additional channel after the installation will add thedefaultschannel and this is fixed by https://github.com/conda/conda/pull/10479.nodejs(avoid issue with long path on windows)