Change first day of the week and time format

[svennefenne]

Maybe add an option to change first day of the week to monday. (Euro friendly)

Also maybe add an option to change time format to 24h. (Euro frendly)

[eddiewebb]

Of course, I will try to get to this soon!

[eddiewebb]

settting local of fullcalendar should do both, and we shouldbe able to mirror flarum selection.

We can also expose specific settings for firstDay and timeformat if needed

https://fullcalendar.io/docs/locale

[eddiewebb]

@svennefenne @testm4v3rick - Fixed in 1.5.2

The plugin now uses Flarum's current locale to pass directly to fullcalendar. European locales will change date format and firstDay.