Add TicketType model with validations and fix dropdown menu

- Create TicketType model with Party association and Ticket relationship
- Add comprehensive validations for name, description, pricing, and date ranges
- Generate migration for ticket_types table with all required fields
- Add Alpine.js import to fix dropdown menu functionality
- Update ticket model with validations for qr_code, price, and status

test/models/ticket_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class TicketTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end