fix(query-builder): the action area size

Author: desig9stein

projects/igniteui-angular/src/lib/core/styles/components/query-builder/_query-builder-theme.scss

@@ -370,6 +370,7 @@
         display: flex;
         gap: $gap;
         align-items: center;
+        width: auto;
 
         [igxIconButton] {
             transition: none;