Weight based AreaInsert and Dumpable delay, a janitor qol tweak (#24899)

Weight based delay, retuned average, fixed comments

Content.Shared/Storage/Components/DumpableComponent.cs

@@ -1,4 +1,5 @@
 using Content.Shared.DoAfter;
+using Content.Shared.Storage.EntitySystems;
 using Robust.Shared.Audio;
 using Robust.Shared.GameStates;
 using Robust.Shared.Serialization;
@@ -24,7 +25,7 @@ public sealed partial class DumpableComponent : Component
     /// How long each item adds to the doafter.
     /// </summary>
     [DataField("delayPerItem"), AutoNetworkedField]
-    public TimeSpan DelayPerItem = TimeSpan.FromSeconds(0.2);
+    public TimeSpan DelayPerItem = TimeSpan.FromSeconds(SharedStorageSystem.AreaInsertDelayPerItem);
 
     /// <summary>
     /// The multiplier modifier