Portal sprite & behavior tweaks (#19179)

* Portal repalette

* Portal traversal verb + anchoring

* map restriction

* optional max distance checks if we decide to have them later

* lower pointlight energy slightly hopefully makes it less garish

Content.Shared/Teleportation/Components/HandTeleporterComponent.cs

@@ -38,7 +38,8 @@ public sealed class HandTeleporterComponent : Component
     /// <summary>
     ///     Delay for creating the portals in seconds.
     /// </summary>
-    [DataField("portalCreationDelay")] public float PortalCreationDelay = 2.5f;
+    [DataField("portalCreationDelay")]
+    public float PortalCreationDelay = 1.0f;
 }
 
 [Serializable, NetSerializable]