Seeing a lot of core themes are adding folders for classy in their css and templates folder so thought maybe we should adopt.
Copied the media library hooks from core theme seven. Core themes don't include scss files but just straight css so those files will probably have to be fixed to pass lint.
Added an elements.scss file from the core theme seven.
Updated all copied files url() properties so the images will be pulled. Like the grid, table, x button for the media library popup.
I think the packages being used need to be updated too. npm audit returns 58 vulnerabilities (2 low, 41 moderate, 15 high)