* updated styles to include rounded corners and updated backgrounds/containers
* updated snapshots
* removed background from app bar top
* removed top padding from lhs
* updated name of container to better match the grid name in css
* fixed lint issue with css
* update snapshot
* adjusted padding/margin
* use radius variables
* remove margin and border radius from plabooks for now
* fixed tasklist
* minor tweaks to menus
* add global border variables and use in key places
* fixed grid issues with login page and backstage
* use border variable
* adjust padding in global header
* fixed type issues
* tweaks to spacing
* fixed margin issue on backstage
* fixed padding on global header
* minor tweaks to header and apps bar
* removed background from apps bar
* updates to header and app bar and team icon
* updated more borders and radii to use variables
* fixed style lint issue
* adjust letter spacing on category labels
* fix lint issue
* fixed position of popover
* address UX feedback
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