fix table action background color when hovering a row

plugins/CoreHome/stylesheets/dataTable/_entityTable.less

@@ -70,6 +70,9 @@ table.entityTable {
     background-color: @theme-color-background-base !important;
   }
 }
+.card tr:hover button.table-action {
+  background-color: @theme-color-background-tinyContrast !important;
+}
 .table-action {
   padding: 16px;
   height: auto;
@@ -119,4 +122,4 @@ table.entityTable {
       text-decoration: underline;
     }
   }
-}
\ No newline at end of file
+}