* ui: Adds a tab selection animation to our app tabs
1. Replace all mentions of `magenta` with a themeable CSS property.
2. Add an easy way to inline style DOM nodes
3. Use CSS properties to add tab animation
* Fix up rendering test
* Avoid DOM noodling as much as possible
* Remove old %action-group
* Remove old variables we no longer need
* Use the discovery-chain component in the same manner as others
* Split `product` out into its separate components
