* Refactor dashboard layout into new Layout components
* Style the new layout
* Use Slot/Fill for the Header component
* Center cards, fixed size for sidebar
* Only set the box-sizing on things within our app
* Make app the full height of the wp-admin frame
* Add styles to show/hide sidebar
* Toggle the sidebar
* Wrap router around entire Layout, use page setting to show/hide sidebar on page
* Fix the styles on show/hide buttons, add title & close button to the sidebar
* Use a min-height on visible sidebars
* Add/update READMEs
* Update space between main content & sidebar
* Add Jest testing with Gutenberg as a dependency
* Add test using Enzyme
* Update for “element” moving
Something also must have moved api-request, so we mock that import now
* Add a Card component
* Add basic styling
* Update example card
* `instanceOf` doesn’t work like expected, but we can require a specific component by looking at shape + object.type
* Use module-relative paths for components
* Implements a header component with breadcrumbs
* Handle PR Feedback. Also moves admin URL to an object, and adds a README
* README: Card --> Header typo