fix(docs): updated width on table of contents

It looks like some of the widths changed since v5. This caused flex to stop wrapping the table of contents at the viewports mentioed in patternfly#4178. The table of contents was still present, but just at the bottom of the screen since the order was 1 (the main content is ordered at 0). Dropping down to this width seems to allow wrapping as expected again.

Should fix patternfly#4178

packages/documentation-framework/components/tableOfContents/tableOfContents.css

@@ -48,7 +48,7 @@
 
 @media (min-width: 1451px) {
   .ws-toc {
-    width: 280px;
+    width: 266px;
     max-height: calc(100vh - 76px);
     overflow-y: auto;
     /* Hide TOC scrollbar IE, Edge & Firefox */