feat: show my bookings on a month calendar

templates/booking/index.html.twig

@@ -8,6 +8,17 @@
     <h1 class="pt-2">Meine Buchungen</h1>
     <p class="subline">Alles, was ab heute für dich reserviert ist.</p>
 
+    {#
+        Swapped out of band by Booking\MonthController when you page the month. It owns a stable id
+        and emits hx-swap-oob only when rendered through htmxOobResponse -- rendered normally it is
+        plain markup. Same idiom as board/index.html.twig.
+    #}
+    {% block calendar %}
+        <div id="booking-calendar" class="mt-8"{% if htmx_oob_swap is defined and htmx_oob_swap %} hx-swap-oob="true"{% endif %}>
+            {% include 'booking/_calendar.html.twig' %}
+        </div>
+    {% endblock %}
+
     {% if series is not empty %}
         <h2 class="pt-8">Wiederkehrende Buchungen</h2>
         <ul class="divide-y divide-gray-200 border-y border-gray-200">