* feat(base/modal): order props alphabetically

* feat(base/ui): added ripple color for tertiary button

* feat(prejoin): removed autoFocus from input and adjusted content

* feat(conference): adjusted RaisedHandCountLabel and added extra code spaces

* feat(prejoin): fixed content to fit tablets

* feat(conference): moved header button styles to navigation styles

* feat(mobile/navigation): updated header navigation button styles

* feat(prejoin): updated elements width, removed left inset