Refactor price display in index.html to use span elements for better structure and styling

templates/index.html

@@ -138,8 +138,8 @@
                 <button type="submit" name="position" value="{{ pos }}" title="{{ prod['name'] }}"
                     class="btn {{ prod['color_class'] }}">
                     <span class="article-icon">{{ prod['icon'] }}</span>
-                    {{ '{:,.2f}'.format(prod['price']).replace('.', ',') }}€
+                    <span>{{ '{:,.2f}'.format(prod['price']).replace('.', ',') }}€</span>
-                    ({{ items.get(pos, 0) }})
+                    <span>({{ items.get(pos, 0) }})</span>
                 </button>
             </div>
             {% endfor %}