* UX: Add a description about badges
* WIP: Apply admin UI guidelines
* FIX: Add routeModels to dbutton
Allows routeModels to be passed to a DButton along
with route, so we can use them as a LinkTo replacement
in more places.
Also fix up badges admin page header.
* UX: Reorder action buttons
* UX: Change header hierarchy to better align page's content structure
* UX: Update copy and remove unnecessary UI elements
* UX: Adjust header's icon spacing
* UX: Fix the header action buttons on mobile
* Apply prettier
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Co-authored-by: Martin Brennan <martin@discourse.org>