doc: Tag ve.ui.Window static properties as inheritable
doc: Tag ve.ui.Window static properties as inheritable

Also updated outdated reference to dialog in demo.

Change-Id: I6c9997d4b4059348b400f592d6ae95cd9f43996c

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui