Revert the temporary color/icon/image demo

Confirmed it renders correctly (icon + accent border, banner image) -
reverting since which features/alternatives actually get these is an
editorial choice, not mine to make.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

questions/index.yaml

@@ -18,8 +18,6 @@ alternatives:
     features:
       - name: What we've built
         description: A few things already out in the world.
-        color: "#f0923c"
-        icon: lucide:rocket
         resource:
           source:
             kind: gitea_starred
@@ -48,7 +46,6 @@ alternatives:
             optional: true
 
   - name: Keep me posted
-    image: https://uhhm.no/wordmark.svg
     description: >
       Considered notes on what we're building, and why — sent only when
       there's something worth saying.