Replaces hard-coded border-radius property with corresponding token.
Replaced hard-coded 92vw with a combination of tokens the correctly calculate the available space (minus the sidebar width, page main container margin, and page main section padding).
Closes #79 Follow-up to #72
This PR updates the CSS in two ways:
border-radius
property with corresponding token.92vw
with a combination of tokens the correctly calculate the available space (minus the sidebar width, page main container margin, and page main section padding).