Change Module Format To Tabs

[burkeholland]

Sencha's docs have a really nice tabbed layout for their widgets that contains all of the properties, methods and events on the same page. No jumping around. Can we consider implementing a format similar to this?

[tjvantoll]

Agreed that this is far easier to navigate than https://docs.nativescript.org/api-reference/globals.html. Something to consider if we ever work on the design of the API docs.