Add configkeys to offline matching plotly js 1.39.2

[jeffreypriebe]

Looking at plotly js, there are a number of configkeys that are valid that aren't in this offline whitelist. This adds all configkeys from current plotly js.

Note, this PR encompasses: #1042

[jonmmease]

Thanks @jeffreypriebe , I'll take a look over this when we upgrade to Plotly.js 1.39.x (which will become plotly.js 3.1.0)

[jeffreypriebe]

Sounds good @jonmmease

Right now, can't output certain valid js configs from python, so running on a fork.

[jonmmease]

Thanks @jeffreypriebe!
Eventually we should also work through which of these options should be exposed to the new FigureWidget class.

[jeffreypriebe]

Great!

Tagging @alextpg in case he wants these changes for future use (3.0 branch).

[alextpg]

Yup, good. Will be useful in the 3.0. Thanks @jeffreypriebe and @jonmmease!