5291: recalculation of dynamic CSS transforms on hover

[alexhartstone]

Adds a conditional transform recalculation method to plot api, and calls it in interactions

[archmoj]

Thanks very much for the follow up PR.
Please find my comments below.

[alexhartstone]

Currently changing tests slightly to check the changes work. Having some issues with the polar tests failing when they shouldn't, will investigate.

[archmoj]

Here is a demo using the changes made by this branch.
Nice job @alexhartstone 🥇
This looks pretty close if you adjust tests and address syntax errors.
To catch syntax errors before each commit you could simply run the command below:
npm run test-syntax

[alexhartstone]

Fixing up syntax errors now - npm run test-syntax doesn't seem to be picking up a lot of my syntax errors, weirdly. I've installed eslint and that seems to get it

[archmoj]

Have you tested hover on mapbox traces?
You may need to recalculate the transform from src/plots/mapbox/mapbox.js considering changes in #5193.

[archmoj]

Have you tested hover on mapbox traces?
You may need to recalculate the transform from src/plots/mapbox/mapbox.js considering changes in #5193.

Nevermind. mapbox hovers works as expected.

[archmoj]

Thanks @alexhartstone
💃