Properly use logger

[Naamloos]

In some cases, Obsidian improperly uses string formatting with the logger.

As of right now, it would use the following formatting:

Logger.LogDebug($"Sent Login success to user {Player.Username} {Player.Uuid}");

This should be

Logger.LogDebug("Sent Login success to user {Username} {UUID}", Player.Username, Player.Uuid);

Now, this given example is already fixed but I am sure there may be more cases of it being incorrect.