Improve keyboard controls

This removes the legacy toolbar in favour of a custom toolbar that
properly handles keyboard controls. It also adds keyboard control over
showing/hiding the toolbar, and keyboard control over switching pages.

Fix: https://ebce-lyrasis.atlassian.net/browse/PP-3174

Author: io7m

README-CHANGES.xml

@@ -212,8 +212,14 @@
         </c:change>
       </c:changes>
     </c:release>
-    <c:release date="2025-09-05T12:02:30+00:00" is-open="true" ticket-system="org.lyrasis.jira" version="6.10.0">
-      <c:changes/>
+    <c:release date="2025-11-06T12:15:03+00:00" is-open="true" ticket-system="org.lyrasis.jira" version="6.10.0">
+      <c:changes>
+        <c:change date="2025-11-06T12:15:03+00:00" summary="Improve keyboard controls.">
+          <c:tickets>
+            <c:ticket id="PP-3174"/>
+          </c:tickets>
+        </c:change>
+      </c:changes>
     </c:release>
   </c:releases>
   <c:ticket-systems>