Sync styleguide 2026.05.18.2

public/assets/styleguide.upstream.css

@@ -4947,7 +4947,18 @@ main {
 }
 
 .sg-large-table[data-column-resize="true"] {
+  overflow: hidden;
+}
+
+.sg-large-table__viewport {
+  align-self: stretch;
+  flex: 1 1 auto;
+  min-width: 0;
+  width: auto;
+  max-width: 100%;
   overflow-x: auto;
+  overflow-y: hidden;
+  box-sizing: border-box;
 }
 
 .sg-large-table__title-segment {