Move minds, roles, jobs and objectives to shared (#19679)

Content.Client/Players/PlayerSystem.cs

@@ -0,0 +1,12 @@
+using Content.Shared.Players;
+using Robust.Shared.Players;
+
+namespace Content.Client.Players;
+
+public sealed class PlayerSystem : SharedPlayerSystem
+{
+    public override PlayerData? ContentData(ICommonSession? session)
+    {
+        return null;
+    }
+}