Localize state names (#5744)

* Localize state names in js-helper

* localize statename in address-confirm

* add localized state_name to AbstractPosition and AttendeeProfile

* use state_for_address in order export

src/pretix/base/views/js_helpers.py

@@ -82,7 +82,7 @@ def _info(cc):
     statelist = [s for s in pycountry.subdivisions.get(country_code=cc) if s.type in types]
     return {
         'data': [
-            {'name': s.name, 'code': s.code[3:]}
+            {'name': gettext(s.name), 'code': s.code[3:]}
             for s in sorted(statelist, key=lambda s: s.name)
         ],
         **info,