🟡 [Enhancement] Add multi-language support (Hindi, Spanish, French)

[AkshatRaj00]

Feature Request

Summary

VisaIQ targets a global audience but is English-only. Adding i18n support for Hindi, Spanish, and French would significantly expand reach.

Proposed Implementation

# i18n/translations.py
TRANSLATIONS = {
    "en": {
        "title": "Visa Processing Intelligence",
        "predict_tab": "Predict",
        "train_tab": "Train",
        "country_label": "Country of application",
        "submit_btn": "Generate estimate",
        "estimated_time": "Estimated time",
    },
    "hi": {
        "title": "वीज़ा प्रोसेसिंग इंटेलिजेंस",
        "predict_tab": "अनुमान",
        "train_tab": "प्रशिक्षण",
        "country_label": "आवेदन का देश",
        "submit_btn": "अनुमान लगाएं",
        "estimated_time": "अनुमानित समय",
    },
    "es": {
        "title": "Inteligencia de Procesamiento de Visas",
        "predict_tab": "Predecir",
        "submit_btn": "Generar estimación",
    }
}

def t(key: str, lang: str = "en") -> str:
    return TRANSLATIONS.get(lang, TRANSLATIONS["en"]).get(key, key)

In app.py:

lang = st.sidebar.selectbox("🌍 Language", ["en", "hi", "es", "fr"], 
                             format_func=lambda x: {"en": "🇬🇧 English", "hi": "🇮🇳 Hindi", "es": "🇪🇸 Español"}[x])

Impact

• Reaches 500M+ Hindi speakers
• Expands to Latin American visa applicants
• Makes VisaIQ truly global

enhancement i18n accessibility global