* Basic onboarding modal that's shown to users once
* Lay out pages 2 through 5, add images, style modals (#1509)
* Lay out pages 2 through 5
Added images and laid out pages 2 through 5 in the jsx file. SCSS will
come, still working on just seeing if this works at all.
* Fix jsx errors, add images to modal pages, style modal pages
* Add animations to onboarding pager changes, improve wording and styling
* Finishing touches on the onboarding
* Add missing propTypes
* Update wording
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