* refactor(sass): separate sass variables from styles
also adds styles for stand alone avatar
closes#9192closes#12880
* style(range): remove deprecated variable
* refactor(sass): move variables for chip and fix file naming
* feat(): support ios11 layout
* style(): update ios11 layout mixins
* style(): ios layout updates
* style(): adjust tabs vars
* refactor(app): add statusbar for md mode and move sass vars
adds cordova test for app and renames sass vars to remove cordova
* test(app): update app cordova test for button
* test(app): add page three