- Renamed tenantFirstName to tenantName in BillingLocation interface
- Updated LocationEditForm field to accept full name (first and last)
- Set maximum length to 30 characters for tenant name field
- Updated all database operations to use tenantName
- Changed English label from "Tenant First Name" to "Tenant First and Last Name"
- Updated Croatian translations to match (Ime i prezime podstanara)
- Updated form validation schema and error messages
- Removed old tenantLastName-related translations
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Co-Authored-By: Claude <noreply@anthropic.com>