[AC-6290] Documentation: Ti.Media is not accessible

In the current documentation you access Ti.Media (top level); https://docs.appcelerator.com/platform/latest/ Even if you change the URL by hand to: https://docs.appcelerator.com/platform/latest/#!/api/Titanium.Media you can read the data. The Vuepress docs at: https://appcelerator.github.io/titanium-vuepress-docs/api/titanium/media.html list the entries