feat: simplify pricing and room selection display

templates/booking/create/step_1.html.twig

@@ -9,7 +9,9 @@
                 {{ form.vars.label_room }} {% if form.vars.is_inquiry %}(nur auf Anfrage){% endif %}
             </div>
             <div class="text-gray-500">
-                {{ form.vars.label_price }}
+                {% if form.vars.label_price_amount is defined and form.vars.label_price_amount is not null %}
+                    {{ form.vars.label_price_amount|format_currency('EUR') }} pro Person
+                {% endif %}
             </div>
         </div>
         <div>