[DSM-2025] Add Speakers Page (#15358)

Co-authored-by: Josh Angolano <[email protected]>

Author: jangolano

content/events/2025-des-moines/speakers.md

@@ -0,0 +1,6 @@
++++
+Title = "Speakers"
+Type = "Speakers"
+Description = "Speakers, sessions, ignites, meals"
++++
+<script type="text/javascript" src="https://sessionize.com/api/v2/fma3nn2a/view/Speakers"></script>

data/events/2025/des-moines/main.yml

@@ -38,7 +38,7 @@ nav_elements: # List of pages you want to show up in the navigation of your page
  # - name: location
   - name: registration
   - name: schedule
- # - name: speakers
+  - name: speakers
   - name: sponsor
   - name: contact
   - name: conduct