chore: polish bunny challenge copy

Co-authored-by: DenisValeev <884686+DenisValeev@users.noreply.github.com>
Agent-Logs-Url: https://github.com/DenisValeev/denisvaleev.github.io/sessions/9345fac5-645c-446f-8479-01967e29d636

Author: Copilot

apps/enchanted-bunny/index.html

@@ -2202,7 +2202,7 @@ <h1 class="sr-only">Enchanted forest bunny at golden hour</h1>
           <span class="status-value" id="beam-color-value">Verdant</span>
         </div>
       </div>
-      <div class="status-note">Clear every butterfly. The swarm returns with one extra flutter and a fresh beam color.</div>
+      <div class="status-note">Clear every butterfly. The swarm returns with one extra butterfly and a fresh beam color.</div>
       <span class="sr-only" id="butterfly-live" aria-live="polite"></span>
     </section>
     <div class="skin-action">