feat: refactoring and cleanup

templates/booking/create/step_2.html.twig

@@ -64,11 +64,7 @@
             <div id="booking-summary"{% if htmx_oob_swap|default(false) %} hx-swap-oob="true"{% endif %}>
                 {% include 'booking/_summary.html.twig' with {
                     'bookingCreateDto': bookingDto,
-                    'participantCount': summaryData.participantCount,
-                    'groupedSelectedRooms': summaryData.groupedSelectedRooms,
-                    'assignmentCounts': summaryData.assignmentCounts,
-                    'pricingData': pricingData,
-                    'cmsData': cmsData
+                    'summaryData': summaryData
                 } %}
             </div>
         {% endblock %}