react-cytoscapejs v2 and lint updates

[alexcjohnson]

Use new react-cytoscapejs@2.0.0 - from plotly/react-cytoscapejs#99 (cc @akx)
Supersedes #2133

@T4rk1n unclear why I need the lint updates here, yet CI was passing?

(probably doesn't need a changelog entry, as this has no user-facing consequences)

[T4rk1n]

@T4rk1n unclear why I need the lint updates here, yet CI was passing?

The linting for black seems to be broken:

> private::lint.black
> if [[ ${PYVERSION:-python39} != python36 ]]; then black dash tests --exclude metadata_test.py --check; fi

sh: 1: [[: not found

[T4rk1n]

💃