add ticket purchase page

Co-authored-by: Jan-Marlon Leibl <jleibl@proton.me>
Reviewed-on: http://git.simonis.lol/projects/abiball/pulls/13
Reviewed-by: jank1619 <jan@kjan.email>

assets/styles/app.css

@@ -2,3 +2,10 @@
 @tailwind components;
 @tailwind utilities;
 
+.text-input {
+  @apply border border-gray-300 rounded-lg focus:ring-2 focus:ring-orange-500 outline-orange-500 focus:border-orange-500 transition-colors;
+}
+
+option:disabled {
+  display: none;
+}