`.jsx` linting is now in-scope for the `npm run lint` command, and
I linted the base files and some of the viz, there's still quite a bit
of work there, but that's a first pass on it.
* Refactor around how visualizations/*.js are required
* Reactifying FilterBox further
* Fixing the auto-refresh on filtering events
* Fixing preselected filters
At the moment, when using the "Period Ratio" option, a percentage
formatting is forced on the Y Axis. This code pre-dates the `Y Axis
Format` option.
People may want to see a growth rate, in which case the current `.3p`
isn't what they want, or they may want only 2 digits of precision or
whatever else. This PR allows that.
* Periodically update the slices in the dashboard
* Make the refresh interval changeable
* Add the button and the modal for the user to change the refresh interval
* Don't use callback for refreshing
* Randomize to prevent all widgets refreshing at the same time
* Show the loading icon as an overlay when the slices refresh
