PCRB follow up client side logic

MesaFabApproval.Shared/Models/PCRBNotification.cs

@@ -2,5 +2,8 @@
 
 public class PCRBNotification {
     public required string Message { get; set; }
+    public string? Subject { get; set; }
     public required PCRB PCRB { get; set; }
+    public Approval? Approval { get; set; }
+    public bool NotifyQaPreApprover { get; set; } = false;
 }