$$() returns webix.ui.baseview instead of webix.ui.view

Reason :
	if you call $$('layoutId'), webix returns a webix.ui.baselayout
	baselayout and all views are based on baseview
	==> baseview is thus a more generic typing

webix/webix.d.ts

@@ -7530,4 +7530,4 @@ interface window extends webix.ui.baseview{
 
 }}
 
-declare function $$(id: string|Event|HTMLElement):webix.ui.view;
+declare function $$(id: string|Event|HTMLElement):webix.ui.baseview;