style: small tweaks on blocks

apps/client/src/features/rundown/event-block/EventBlock.module.scss

@@ -2,8 +2,11 @@
 @use '../../../theme/ontimeColours' as *;
 @use '../blockMixins' as *;
 
+$skip-opacity: 0.1;
+
 .eventBlock {
   @include block-styling;
+  background-color: $block-bg;
 
   display: grid;
   grid-template-areas:
@@ -29,7 +32,6 @@
 
   &.skip {
     border: 1px solid $white-3;
-    box-shadow: none;
 
     .delayNote,
     .eventTitle,
@@ -37,7 +39,7 @@
     .binder,
     .eventTimers,
     .eventStatus {
-      opacity: $opacity-disabled;
+      opacity: $skip-opacity;
     }
   }
 }