[timeline] farebne odlisenie vikendov

app/src/plugins/app@vendor/vue-cal/cell.vue

@@ -106,6 +106,7 @@ export default {
       return {
         'vuecal__cell-split': true,
         'vuecal__cell-split--highlighted': this.highlightedSplit === split.id,
+        'vuecal__cell-split--weekend': split.isWeekend,
         [split.class]: !!split.class
       }
     },