Fix / Upgrade jupyterlab-dash to jupyter-dash

[Jose-Matsuda]

From issue 104

jupyterlab-dash not working
Using an example out of their documentation as well as the longer example it does not appear to work.
Additionally, it does not appear in the jupyterlab extensions widget.

upgrade jupyterlab-dash to jupyter-dash
As mentioned by Andrew, "jupyterlab-dash has been deprecated in place of jupyter-dash. Update to the newer one"

[Jose-Matsuda]

Managed to get something working mainly following steps here.
The code for the demo I got from their medium article with the modification for the app.run_server... to app.run_server(mode="jupyterlab", port="8889", debug=False)

Mentioned in the issue but not in the medium article: needed to also install jupyter-server-proxy

Still TODO
Make the changes in a more up to date branch. Change to jupyter-dash and bring in jupyter-server-proxy
Pin the versions as 1.5.0 for jupyter-server-proxy and 0.3.0 for jupyter-dash (these are the latest versions) and test

Aside:
I think the conda install for jupyter-dash can't go in just another line in the existing ones.
From the anaconda site it uses 'plotly'

[Jose-Matsuda]

As mentioned in standup, probably will wait for Andrew's feat-129 to get merged. Then I'll pull again and make a PR for it.

1. 'jupyter-server-proxy==1.5.0' \ to the pip install

conda install \ 
-c plotly \ 
'jupyter-dash==0.3.0' \