Implement ticket selection with Stimulus controller and improve code documentation

- Add ticket selection functionality to event show page using Stimulus
- Create ticket_selection_controller.js for handling ticket quantity changes
- Update ticket card component and event show view to work with Stimulus
- Add comprehensive comments to all JavaScript files for better maintainability
- Remove dependent: :destroy from event ticket_types association

app/javascript/controllers/application.js

@@ -1,12 +1,19 @@
+// Main Stimulus application controller
+// Initializes the Stimulus framework and makes it available globally
 import { Application } from "@hotwired/stimulus";
 
+// Create and start the Stimulus application
 const application = Application.start();
 
 // Configure Stimulus development experience
+// Set to false in production to avoid unnecessary logging
 application.debug = false;
+
+// Make Stimulus globally available for debugging purposes
 window.Stimulus = application;
 
-// import Alpine from 'alpinejs';
+// Configure Alpine js (commented out as it's not currently used)
+// import Alpine from "alpinejs";
 // window.Alpine = Alpine;
 // Alpine.start();