Pin to v0.2.7

Pin to v0.2.7

Add git-lfs to jupyterlab base image

Add argo-jupyter-scheduler to JupyterLab image (nebari-dev#81)

Add argo-jupyter-scheduler to JupyterLab image (nebari-dev#81)

pin version (nebari-dev#61)

Add spellchecker and execute_time extensions (nebari-dev#54)

Add spellchecker and execute_time extensions (nebari-dev#54)

Pin sqlalchemy==1.4.46 (nebari-dev#49)

* Pin sqlalchemy==1.4.46

* Clean up

* Unpin nebari-jupyterhub-theme

Remove jupyterlab-conda-store for upcoming release (nebari-dev#47)