Compact and rank pinned mobile work

frontend/index.html

@@ -2187,6 +2187,7 @@
     <section class="mobile-queue-group" id="mobile-pinned-work" aria-labelledby="mobile-pinned-work-heading" hidden>
       <h3 id="mobile-pinned-work-heading">Pinned work</h3>
       <div class="mobile-queue-list" id="mobile-pinned-work-list"></div>
+      <button class="mobile-pinned-work-toggle" id="mobile-pinned-work-toggle" type="button" aria-controls="mobile-pinned-work-list" aria-expanded="false" hidden>Show all</button>
     </section>
     <section class="mobile-queue-group" id="mobile-recent-work" aria-labelledby="mobile-recent-work-heading" hidden>
       <h3 id="mobile-recent-work-heading">Recent work</h3>