Add user profile picture URL synced from the identity provider on login

Application/Users/Commands/SyncUserCommand.cs

@@ -0,0 +1,13 @@
+using Ardalis.Result;
+using Mediator;
+
+namespace Musify.Application.Users.Commands
+{
+    public record SyncUserCommand(
+        long Id,
+        string Name,
+        string? FirstName,
+        string? SecondName,
+        string? ProfilePictureUrl)
+        : ICommand<Result>;
+}