po: Update translation (Norwegian Bokmål)
po: Update translation (Norwegian Bokmål)

Update po/nb.po at 14.1%
https://translate.fedoraproject.org/projects/ibus/ibus/nb_NO/

BUG=https://github.com/ibus/ibus/pull/2201

ibus/ibus,ibus/ibus,fujiwarat/ibus,fujiwarat/ibus,ibus/ibus,fujiwarat/ibus,fujiwarat/ibus,ibus/ibus