Add FormValidationService and EventDefinitionService to dependency injection

Enhanced the application's service layer by adding FormValidationService and EventDefinitionService to the dependency injection container in Program.cs. Updated Create, Edit, and other relevant components to utilize these services for improved form validation and event processing functionality.

WebApp/Program.cs

@@ -174,6 +174,8 @@ builder.Services.AddScoped<ClipboardService>();
 builder.Services.AddScoped<WebApp.LocalStorageService>();
 builder.Services.AddScoped<WebApp.Services.IEventOccurrenceService, WebApp.Services.EventOccurrenceService>();
 builder.Services.AddScoped<Core.Services.IEventOccurrenceParserService, Core.Services.EventOccurrenceParserService>();
+builder.Services.AddScoped<WebApp.Services.FormValidationService>();
+builder.Services.AddScoped<WebApp.Services.EventDefinitionService>();
 
 // State container for maintaining state per user connection (Blazor Server)
 builder.Services.AddScoped<StateContainer>();