feat: improved button sizes in mobile view

templates/_partials/_cancel_button.html.twig

@@ -0,0 +1,7 @@
+<button type="button"
+        hx-get="{{ path('app_booking_cancel') }}"
+        hx-target="body"
+        hx-swap="beforeend"
+        class="inline-flex items-center justify-center bg-gray-200 rounded-md w-8 h-8 md:w-10 md:h-10">
+    <svg class="w-6 h-6 md:w-8 md:h-8" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256"><rect width="256" height="256" fill="none"/><line x1="200" y1="56" x2="56" y2="200" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="16"/><line x1="200" y1="200" x2="56" y2="56" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="16"/></svg>
+</button>