Fix deconstructing walls creating an atmos void.

This caused a lot of high pressure movements.

Content.Server/Atmos/IGridAtmosphereComponent.cs

@@ -40,6 +40,11 @@ namespace Content.Server.Atmos
         /// <param name="indices"></param>
         void Invalidate(MapIndices indices);
 
+        /// <summary>
+        ///     Attempts to fix a sudden vacuum by creating gas.
+        /// </summary>
+        void FixVacuum(MapIndices indices);
+
         /// <summary>
         ///     Adds an active tile so it becomes processed every update until it becomes inactive.
         ///     Also makes the tile excited.