Re-organize all projects (#4166)

Content.Server/Players/PlayerData.cs

@@ -1,5 +1,4 @@
 #nullable enable
-using Content.Server.Mobs;
 using Robust.Server.Player;
 using Robust.Shared.Network;
 using Robust.Shared.ViewVariables;
@@ -23,7 +22,7 @@ namespace Content.Server.Players
         ///     DO NOT DIRECTLY SET THIS UNLESS YOU KNOW WHAT YOU'RE DOING.
         /// </summary>
         [ViewVariables]
-        public Mind? Mind { get; set; }
+        public Mind.Mind? Mind { get; set; }
 
         /// <summary>
         ///     If true, the player is an admin and they explicitly de-adminned mid-game,

Content.Server/Players/PlayerSessionExt.cs

@@ -1,4 +1,4 @@
-using Content.Shared.Network.NetMessages;
+using Content.Shared.GameWindow;
 using Robust.Server.Player;
 
 namespace Content.Server.Players