Clean up image patterns & add base box shadow variable.
Remove pullquote pattern.
Update tabs pattern.
Fix footer layout issue if uncleared floats above.
Use Filament Group's FixedSticky for position sticky polyfill.
Remove message box pattern.
Update info bar pattern with new spacing and grid.
Update button modifier classes.
Update CTA with new spacing.
Remove "empty" pattern.
Fix header grid alignment.
Clean up spacing on fixed-sticky classes.
Remove overrides from container module.