* 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
* refactor(components): add translucent property
* feat(toast): add translucent property to toast
* refactor(toolbar): get translucency working with colored toolbars
* refactor(fab): get colored fab and list fab working with translucent
* feat(loading): add translucent property for loading
* feat(popover): add translucent option to popover
* feat(card): add translucent property to card header
* refactor(components): default translucent to false
* refactor(card): use white for card header background
* refactor(tabs): update translucency values and add test for it
* feat(translucent): add translucent options to alert and action sheet
* refactor(translucent): update values for transucency
* feat(tabs): add translucent color styles