Experimental: use microbundled react-cytoscapejs

[akx]

As requested by @alexcjohnson in plotly/react-cytoscapejs#99 (comment) , this pulls in the plotly/react-cytoscapejs#99 version of react-cytoscapejs and adds cytoscape as a direct dependency (as it is a peer dependency of react-cytoscapejs going forward) for dash-renderer's dev tools.

• 👉 This PR should not be merged as-is, though, since the package.json specifier for react-cytoscapejs is not a published version

Contributor Checklist

• I have run **npm run test in dash/dash-renderer locally and it passed with flying colors.
• I have run manual tests with this version of dash linked in to a downstream project:

I tried things out in my dash-cytoscape plotly/dash-cytoscape#180 branch with

pip install -e ../dash
pip install -e ../dash/components/dash-table/
pip install -e ../dash/components/dash-html-components/
pip install -e ../dash/components/dash-core-components/

and e.g. the python usage-responsive-graph.py demo shows the callback graph just fine.

[akx]

Closing in favor of #2217.