Switch to nb-NO from no-NO for Norwegian

[snipe]

So it turns out, according to this conversation in Discord, there are two (technically three?) written Norwegian official languages. Because we were using no-NO, no match could be found in the Bootstrap Tables pagination JS localization, so it was defaulting to English even though they do actually have a translation for nb-NO. This should fix that.

[what-the-diff]

PR Summary

• Updated Application Locale
  The standard language setting for our app, previously set to English (en), has been changed to United States English (en-US). This minor change was applied across different configurations in our project.

• Locale Adjustment for Norwegian
  In our code, we had been incorrectly referring to Norwegian as no-NO. This has now been corrected to nb-NO, which is the appropriate code for Norwegian Bokmål, the most widely spoken dialect.

• Database Migration for Norwegian Locale
  To ensure consistency with our code changes, a new migration file was added. This file updates all instances of the old no-NO locale to nb-NO on the Setting and User models in our database.

• Language Reference Update
  In our 'localizations' file, we've updated the name linked to the no-NO locale, changing it from 'Norwegian' to 'Norwegian Bokmål'. We've also temporarily removed the old reference to 'Norwegian' to avoid confusion. This helps our system correctly identify and categorize language data.