Website updates

Author: ahocevar

dist/en/main/examples/common.js

@@ -90,6 +90,11 @@ declare class CanvasTileLayerRenderer<LayerType extends import("../../layer/Tile
      * @private
      */
     private sourceTileCache_;
+    /**
+     * @protected
+     * @type {import("../../extent.js").Extent|null}
+     */
+    protected layerExtent: import("../../extent.js").Extent | null;
     /**
      * @return {LRUCache} Tile cache.
      */