basic summaries for all pair classes, create partial classes and condense models into a single file

LightlessSync/PlayerData/Pairs/VisibleUserDataDistributor.cs

@@ -14,6 +14,9 @@ using Microsoft.Extensions.Logging;
 
 namespace LightlessSync.PlayerData.Pairs;
 
+/// <summary>
+///     pushes character data to visible pairs
+/// </summary>
 public class VisibleUserDataDistributor : DisposableMediatorSubscriberBase
 {
     private readonly ApiController _apiController;