The InquiryModal had all Vietnamese text written without diacritics
(e.g., "Vui long" instead of "Vui lòng"), which looks unprofessional
on a Vietnamese real estate platform. Fixed all 12 text strings.
The onClick handler, modal form, API integration (POST /api/v1/inquiries),
phone pre-fill, and success state were already correctly implemented.
Co-Authored-By: Paperclip <noreply@paperclip.ing>