fix(docs-infra): fix mobile toc styles (#31533)

Return mobile toc styles from bug in PR#31013
Give docs pages header a width limit so it does not run into the Github icon link

PR Close #31533

aio/src/styles/1-layouts/_layout-global.scss

@@ -7,6 +7,10 @@ body,
     background-color: $white;
 }
 
+.github-links + .content h1 {
+  max-width: 90%;
+}
+
 .clearfix {
     content: "";
     display: table;

aio/src/styles/2-modules/_toc.scss

@@ -6,6 +6,7 @@
   bottom: 12px;
   overflow-y: auto;
   overflow-x: hidden;
+}
 
 .toc-inner {
   @include font-size(13);
@@ -186,7 +187,6 @@
     }
   }
 }
-}
 
 // Alternative TOC View for Smaller Screens
 aio-toc.embedded {