[Frontend] Implement Multi-Language Support (i18n)

[ONEONUORA]

🎯 Objective

Add internationalization support for multiple languages to expand global reach.

📋 Requirements

• i18n framework integration
• Support for 5+ languages initially
• RTL language support
• Currency formatting per locale
• Date/time formatting
• Dynamic language switching
• Translation management system

🔧 Technical Details

• Use react-i18next or similar
• Create translation files (JSON)
• Implement language detection
• Add language selector in settings
• Format numbers/dates per locale
• Support RTL layouts
• Set up translation workflow

✅ Acceptance Criteria

• English, Spanish, French, Arabic, Swahili supported
• RTL works for Arabic
• Currency formatted correctly
• Dates formatted per locale
• Language switches without restart
• All text translatable
• Translation workflow documented
• Missing translations handled gracefully

Priority: Medium
Component: Frontend/Localization

[Menjay7]

@Menjay7 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi! I'm, a full-stack developer with a strong blockchain background. I’d love to handle this issue and can deliver a clean, reliable solution. Kindly assign it to me.

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[anonfedora]

@anonfedora has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

I'm Anonfedora, I have vast experience in contributing and building on the Stellar ecosystem with the Rust using soroban's SDK.
I'm also good at comprehensively testing features.
ETA: < 12 hours

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[drips-wave]

This issue has been completed by @anonfedora as part of the Stellar Wave Program's 4th Wave 🥳

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