New icons and adjustments

Adjusted

• nrk-close → shorter inner lines
• nrk-arrow-left, nrk-arrow-right → matches arrow-long
• nrk-gallery → more clear with frames and stack
• nrk-home, nrk-home--active → simplified
• nrk-media-404-notfound → friendlier ghost
• nrk-tilgjengelighet-tegnspraak → now outlined instead of filled
• nrk-dice-1--active, nrk-dice-2--active, nrk-dice-3--active, nrk-dice-4--active, nrk-dice-5--active, nrk-dice-6--active → more rounding

New

• nrk-offline
• nrk-tilgjengelighet
• nrk-tilgjengelighet-horbarhet