Restyle 2d hud

src/assets/hud/bubble_off-hover.png

src/assets/hud/bubble_off.png

src/assets/hud/bubble_on-hover.png

src/assets/hud/bubble_on.png

src/assets/hud/freeze_off-hover.png

src/assets/hud/freeze_off.png

src/assets/hud/freeze_on-hover.png

src/assets/hud/freeze_on.png

src/assets/hud/mute_off-hover.png

src/assets/hud/mute_off.png

src/assets/hud/mute_on-hover.png

src/assets/hud/mute_on.png

src/assets/stylesheets/2d-hud.scss

src/react-components/2d-hud.js