Adds user Alias. Make StoredDataUrls optionals.

tests/Application.FunctionalTests/Testing.cs

@@ -65,7 +65,12 @@ public partial class Testing
 
         var userManager = scope.ServiceProvider.GetRequiredService<ApplicationUserManager>();
 
-        var user = new ApplicationUser { UserName = userName, Email = userName };
+        var user = new ApplicationUser {
+            UserName = userName, 
+            Email = userName,
+            FirstName = "FirstName",
+            LastName = "LastName"
+        };
 
         var result = await userManager.CreateAsync(user, password);