NXP-11992: simplify styling of action widgets by simplifying the structure
NXP-11992: use a tabs widget for main document tabs
NXP-11992: make sure action label and icon are resolved twice
NXP-11992: fix action label display on fancy box with type 'links'
NXP-11992: fix action display type on 'more' menu
NXP-11992: implement rollover menu on actions widgets