Add new weather icons matching met.no guidelines and naming conventions

Changes to align the icons more to the style and message of
https://api.met.no/weatherapi/weathericon/2.0/documentation.

The changes are summarized in https://invent.kde.org/loisspitz/breeze-icons/-/raw/6844edb660efa05629d49f3a531743b2bfa114d5/ComparisonWeatherIcons.pdf