Add Mia Westermann to the Summit 2026 organizers (#1269)

* Add Mia Westermann to the Summit 2026 organizers

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0167mC5qK3hSpSDrfqnDC4rQ

* Match Mia Westermann's organizer entry to the WordPress page

Use her real photo, the title Outreach Director, and place her last in the
organizers block, as on the WordPress Summit 2026 page.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AEavKG5r3Afsv9ypBBfsAw

---------

Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>

Author: rrrutledge

content/en/events/isc-2026.md

@@ -1585,6 +1585,11 @@ His goal is to strengthen software development capabilities and cross-organisati
     <span class="organizer-name">Paul Berschick</span>
     <span class="organizer-role">Technology Director</span>
   </div>
+  <div class="organizer">
+    <img src="/images/about/Mia_Westermann.jpg" alt="Mia Westermann" />
+    <span class="organizer-name">Mia Westermann</span>
+    <span class="organizer-role">Outreach Director</span>
+  </div>
 </div>
 
 <style>