feat: add Romanian language support (#9388)

# Which Problems Are Solved

- Lack of support for the Romanian language in the application.

# How the Problems Are Solved

- Added translations for the Romanian language

---------

Co-authored-by: Silvan <27845747+adlerhurst@users.noreply.github.com>

internal/api/ui/login/static/i18n/nl.yaml

@@ -265,6 +265,7 @@ RegistrationUser:
   Indonesian: Bahasa Indonesia
   Hungarian: Magyar
   Korean: 한국어
+  Romanian: Română
   GenderLabel: Geslacht
   Female: Vrouw
   Male: Man
@@ -308,6 +309,7 @@ ExternalRegistrationUserOverview:
   Indonesian: Bahasa Indonesia
   Hungarian: Magyar
   Korean: 한국어
+  Romanian: Română
   TosAndPrivacyLabel: Algemene voorwaarden
   TosConfirm: Ik accepteer de
   TosLinkText: AV
@@ -385,6 +387,7 @@ ExternalNotFound:
   Indonesian: Bahasa Indonesia
   Hungarian: Magyar
   Korean: 한국어
+  Romanian: Română
 DeviceAuth:
   Title: Apparaat Autorisatie
   UserCode:
@@ -522,4 +525,4 @@ Errors:
   DeviceAuth:
     NotExisting: Gebruikerscode bestaat niet
 
-optional: (optioneel)
+optional: (optioneel)