Remove Static Component NetIds (#4247)

* Remove the unnecessary NetID property from ComponentState.

* Remove Component.NetworkSynchronizeExistence.

* Removed Component.NetID.

* Adds component netID automatic generation.

* Removed NetIdAttribute from serverside components with no corresponding clientside registration.

* Completely remove static NetIds.

* Renamed NetIDAttribute to NetworkedComponentAttribute.

* Add GenerateNetIds calls to client and server entry points.
Add test to make sure auto generated NetIds are identical.

* Component changes when rebasing that I am too lazy to rewrite into the branch.

Co-authored-by: Vera Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Shared/Alert/SharedAlertsComponent.cs

@@ -1,8 +1,8 @@
-#nullable enable
+#nullable enable
 using System;
 using System.Collections.Generic;
-using Content.Shared.NetIDs;
 using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Players;
@@ -15,13 +15,13 @@ namespace Content.Shared.Alert
     /// Handles the icons on the right side of the screen.
     /// Should only be used for player-controlled entities.
     /// </summary>
+    [NetworkedComponent()]
     public abstract class SharedAlertsComponent : Component
     {
         [Dependency]
         protected readonly AlertManager AlertManager = default!;
 
         public override string Name => "Alerts";
-        public override uint? NetID => ContentNetIDs.ALERTS;
 
         [ViewVariables] private Dictionary<AlertKey, AlertState> _alerts = new();
 
@@ -169,7 +169,7 @@ namespace Content.Shared.Alert
     {
         public Dictionary<AlertKey, AlertState> Alerts;
 
-        public AlertsComponentState(Dictionary<AlertKey, AlertState> alerts) : base(ContentNetIDs.ALERTS)
+        public AlertsComponentState(Dictionary<AlertKey, AlertState> alerts)
         {
             Alerts = alerts;
         }