[WIP] UI size notes

Sidebar:

• width: 256px
• collapses at window width < 870px

Statecards:

• column width: 300px (including 8px margin)
• column max-width: 500px (600px on screens < 600px wide)
• gutter: 8px
• margins: 8px
• card width: 292px Above sizes should allow 2 columns to show until and after sidebar collapse. (so it won't switch between 1, 2 or 3 columns when the sidebar auto-collapses) For this the column min-width should be between: (870-8)/3 = 288px and (870-256-8)/2 = 303px