fix(admin): show template language status in editor

Center action controls and adjust template editor field heights.

Ref: IT-1601

HrynCo.NotificationService.Web/Controllers/Admin/AdminTemplatesController.cs

@@ -69,8 +69,12 @@ public sealed class AdminTemplatesController(IMediator mediator, IEmailTemplateD
         var service = await services.GetAsync(serviceId, ct);
         if (service is null || model.ServiceId != serviceId || model.ServiceName != service.Name)
             return NotFound();
-        if (model.Id is Guid definitionId && await OwnedDefinitionAsync(service, definitionId, ct) is null)
+        var persisted = model.Id is Guid definitionId ? await OwnedDefinitionAsync(service, definitionId, ct) : null;
+        if (model.Id is not null && persisted is null)
             return NotFound();
+        var presentCodes = persisted?.Languages.Select(l => l.LanguageCode).ToHashSet(StringComparer.Ordinal);
+        foreach (var language in model.Languages)
+            language.IsPresent = presentCodes?.Contains(language.LanguageCode) == true;
         ValidateLanguageCatalog(model, service);
         if (!ModelState.IsValid)
             return EditorView(model, service);
@@ -226,7 +230,8 @@ public sealed class AdminTemplatesController(IMediator mediator, IEmailTemplateD
         VariablesJson = JsonSerializer.Serialize(definition.Variables, JsonOptions),
         Languages = definition.Languages.Select(l => new EmailTemplateLanguageEditViewModel
         {
-            LanguageCode = l.LanguageCode, Subject = l.Subject, HtmlBody = l.HtmlBody, TextBody = l.TextBody
+            LanguageCode = l.LanguageCode, Subject = l.Subject, HtmlBody = l.HtmlBody, TextBody = l.TextBody,
+            IsPresent = true
         }).ToList()
     };
 }

HrynCo.NotificationService.Web/Controllers/Admin/ViewModels/EmailTemplateLanguageEditViewModel.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
 
 namespace HrynCo.NotificationService.Web.Controllers.Admin.ViewModels;
 
@@ -12,6 +13,8 @@ public sealed class EmailTemplateLanguageEditViewModel : IValidatableObject
     public string HtmlBody { get; set; } = "";
     [DisplayFormat(ConvertEmptyStringToNull = false)]
     public string TextBody { get; set; } = "";
+    [BindNever]
+    public bool IsPresent { get; set; }
     public bool HasContent => !string.IsNullOrWhiteSpace(Subject) || !string.IsNullOrWhiteSpace(HtmlBody) || !string.IsNullOrWhiteSpace(TextBody);
 
     public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)