add downloads UI, fix some bugs on disconnect

MareSynchronos/Configuration.cs

@@ -47,6 +47,9 @@ namespace MareSynchronos
         public Dictionary<string, string> UidComments { get; set; } = new();
         public bool UseCustomService { get; set; } = false;
         public int Version { get; set; } = 0;
+
+        public bool ShowTransferWindow { get; set; } = true;
+
         // the below exist just to make saving less cumbersome
         public void Initialize(DalamudPluginInterface pluginInterface)
         {