Allow using accordion inside tabs

Author: vovayatsyuk

view/frontend/web/css/source/layout/_collapsed.less

@@ -5,7 +5,7 @@
         margin-right: 0;
         position: relative;
 
-        [role=tablist] {
+        > [role=tablist] {
             display: flex;
             margin-bottom: -@tab-control__border-width;
             overflow-x: auto;
@@ -91,7 +91,7 @@
 }
 
 .media-width(@extremum, @break) when (@extremum = 'min') and (@break = @screen__m) {
-    .product.data.items.collapsed [role=tablist] {
+    .product.data.items.collapsed > [role=tablist] {
         float: left;
         overflow-x: visible;