Fix handlabeler/utility belt misprediction (#26660)

* Fix handlabeler/utility belt misprediction

* Partly moved HandLabelerSystem to shared
And cleaned up HandLabelerComponent

* WIP format the files so later commits look clearer
Doesn't change individual code lines, but may move
functions to another file

* WIP some more code movement

* Hand Labeler is now mostly predicted
Only the UI isn't

* WIP: Formatting and moved stuff

* Using componentstates for prediction correction

* review

* Update label on label change

* Don't overwrite label while editing

---------

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>
Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>

Content.Shared/Labels/Components/HandLabelerComponent.cs

@@ -0,0 +1,30 @@
+using Content.Shared.Labels.EntitySystems;
+using Content.Shared.Whitelist;
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Labels.Components;
+
+[RegisterComponent, NetworkedComponent]
+[Access(typeof(SharedHandLabelerSystem))]
+public sealed partial class HandLabelerComponent : Component
+{
+    [ViewVariables(VVAccess.ReadWrite), Access(Other = AccessPermissions.ReadWriteExecute)]
+    [DataField]
+    public string AssignedLabel = string.Empty;
+
+    [ViewVariables(VVAccess.ReadWrite)]
+    [DataField]
+    public int MaxLabelChars = 50;
+
+    [DataField]
+    public EntityWhitelist Whitelist = new();
+}
+
+[Serializable, NetSerializable]
+public sealed class HandLabelerComponentState(string assignedLabel) : IComponentState
+{
+    public string AssignedLabel = assignedLabel;
+
+    public int MaxLabelChars;
+}