Move gmail app to CSSStackView.
Move gmail app to CSSStackView.

osric-the-knight/foam,mdittmer/foam,foam-framework/foam,jlhughes/foam,foam-framework/foam,osric-the-knight/foam,osric-the-knight/foam,jacksonic/foam,mdittmer/foam,foam-framework/foam,jlhughes/foam,jacksonic/foam,jacksonic/foam,mdittmer/foam,foam-framework/foam,osric-the-knight/foam,jlhughes/foam,foam-framework/foam,jacksonic/foam,jlhughes/foam,mdittmer/foam