Follower fixes (#15348)

Content.Shared/Follower/Components/FollowedComponent.cs

@@ -7,8 +7,9 @@ namespace Content.Shared.Follower.Components;
 ///     Attached to entities that are currently being followed by a ghost.
 /// </summary>
 [RegisterComponent, Access(typeof(FollowerSystem))]
-[NetworkedComponent]
-public sealed class FollowedComponent : Component
+[NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class FollowedComponent : Component
 {
+    [AutoNetworkedField(true), DataField("following")]
     public HashSet<EntityUid> Following = new();
 }