made button text initialization consistent

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 2 people

examples/Live-Digital-Clock/index.html

@@ -38,7 +38,7 @@ <h1>Digital Clock</h1>
             </section>
 
             <div class="controls">
-                <button type="button" id="formatToggle" aria-pressed="false">Switch to 24-hour</button>
+                <button type="button" id="formatToggle" aria-pressed="false">Switch to 24-hour format</button>
             </div>
         </div>
     </main>