Add rounded class

Author: svilenmarkov

internal/glance/static/main.css

@@ -2038,6 +2038,7 @@ details[open] .summary::after {
 .color-primary      { color: var(--color-primary); }
 
 .cursor-help        { cursor: help; }
+.rounded            { border-radius: var(--border-radius); }
 .break-all          { word-break: break-all; }
 .text-left          { text-align: left; }
 .text-right         { text-align: right; }