Avoid dereferencing map_get_first_element_at nullptr on libopenrct2 (#10013)

* Avoid dereferencing map_get_first_element_at nullptr on Map.cpp

* Avoid dereferencing map_get_first_element_at nullptr on MapAnimation.cpp

Returning true or internal control variable, based on what was seen on `map_animation_invalidate_track_onridephoto`

* Avoid dereferencing map_get_first_element_at nullptr on Park.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Scenery.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Sprite.cpp

* Avoid dereferencing map_get_first_element_at nullptr on TileInspector.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Wall.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Fountain.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Footpath.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Entrance.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Banner.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Vehicle.cpp

* Avoid dereferencing map_get_first_element_at nullptr on TrackDesignSave.cpp

* Avoid dereferencing map_get_first_element_at nullptr on TrackDesign.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Track.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Station.cpp

* Avoid dereferencing map_get_first_element_at nullptr on RideRatings.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Ride.cpp

* Avoid dereferencing map_get_first_element_at nullptr on S4Importer.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Staff.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Peep.cpp

* Avoid dereferencing map_get_first_element_at nullptr on GuestPathfinding.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Guest.cpp

* Avoid dereferencing map_get_first_element_at nullptr on VirtualFloor.cpp

* Avoid dereferencing map_get_first_element_at nullptr on Paint.TileElement.cpp

* Fix issues raised on review

* Fix remaining review issues.

* Early exit on loops if tileElement is nullptr

* Fix clang-format issues

src/openrct2/ride/TrackDesignSave.cpp

@@ -525,6 +525,8 @@ static void track_design_save_select_nearby_scenery_for_tile(ride_id_t rideIndex
         for (int32_t x = cx - TRACK_NEARBY_SCENERY_DISTANCE; x <= cx + TRACK_NEARBY_SCENERY_DISTANCE; x++)
         {
             tileElement = map_get_first_element_at(x, y);
+            if (tileElement == nullptr)
+                continue;
             do
             {
                 int32_t interactionType = VIEWPORT_INTERACTION_ITEM_NONE;