Fix wlr_box_intersection args for wlroots 1441

The fix pushed to master missed wlr_box_intersection. This just fixes
those lines so sway renders properly again

sway/desktop/output.c

@@ -108,7 +108,7 @@ static bool get_surface_box(struct surface_iterator_data *data,
 	};
 
 	struct wlr_box intersection;
-	return wlr_box_intersection(&output_box, &rotated_box, &intersection);
+	return wlr_box_intersection(&intersection, &output_box, &rotated_box);
 }
 
 static void output_for_each_surface_iterator(struct wlr_surface *surface,

sway/desktop/render.c

@@ -261,7 +261,7 @@ static void render_saved_view(struct sway_view *view,
 	};
 
 	struct wlr_box intersection;
-	bool intersects = wlr_box_intersection(&output_box, &box, &intersection);
+	bool intersects = wlr_box_intersection(&intersection, &output_box, &box);
 	if (!intersects) {
 		return;
 	}

sway/tree/container.c

@@ -979,7 +979,7 @@ void container_discover_outputs(struct sway_container *con) {
 		output_get_box(output, &output_box);
 		struct wlr_box intersection;
 		bool intersects =
-			wlr_box_intersection(&con_box, &output_box, &intersection);
+			wlr_box_intersection(&intersection, &con_box, &output_box);
 		int index = list_find(con->outputs, output);
 
 		if (intersects && index == -1) {