Core/Units: moved Vignette updating into Heartbeat handling

Port From (https://github.com/TrinityCore/TrinityCore/commit/253f306a410bfbea9843bbb666cae0af30b4c8e8)

Source/Game/Entities/Unit/Unit.Movement.cs

@@ -684,10 +684,6 @@ namespace Game.Entities
             if (isInWater)
                 RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags2.Swimming);
 
-            // TODO: on heartbeat
-            if (m_vignette != null)
-                Vignettes.Update(m_vignette, this);
-
             return (relocated || turn);
         }
 

Source/Game/Entities/Unit/Unit.cs

@@ -2564,6 +2564,10 @@ namespace Game.Entities
 
             // Trigger heartbeat procs and generic aura behavior such as food emotes
             TriggerAuraHeartbeat();
+
+            // Update Vignette position and visibility
+            if (m_vignette != null)
+                Vignettes.Update(m_vignette, this);
         }
 
         void TriggerAuraHeartbeat()