Remove card-table action area (#2016)

In .card-tables there was an action area that had a darker background. Now this area only contains the delete action. Also, users mistakenly assumed that the hovered area could be clicked. It has therefore been removed and the icons themselves have received a hover effect.

scm-ui/ui-styles/src/components/_main.scss

@@ -633,6 +633,7 @@ ul.is-separated {
     &:first-child {
       border-left: 3px solid;
     }
+    // Deprecated
     &.is-darker {
       background-color: $white-ter;
     }
@@ -902,6 +903,10 @@ form .field:not(.is-grouped) {
   border-bottom-right-radius: unset;
 }
 
+.is-vertical-align-middle {
+  vertical-align: middle !important
+}
+
 // radio
 //overwrite bulma's default margin
 .radio + .radio {