Add Bilingual Support (Bahasa Indonesia & English) with Flag Switcher and URL Prefixes

[mfarim]

Feature: Bilingual Support for LampungDevTech Website

This issue aims to implement a bilingual feature to support both Bahasa Indonesia (default) and English throughout the LampungDevTech platform.

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Goals

• Default language: Bahasa Indonesia with URL prefix /id
• English language with URL prefix /en
• Language switcher component with flag icons:
  • 🇮🇩 Indonesian flag (default)
  • 🇺🇸 US flag for English
• Persist selected language during navigation

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Implementation Notes

• Integrate i18n support in the Next.js app (can use next-i18next)
• Add basic translation files in /locales/id and /locales/en
• Use dynamic routing or middleware if needed to redirect / to /id
• Ensure SEO-friendly canonical URLs for each language
• Maintain accessibility for the language switcher (e.g., aria-label, keyboard navigation)

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Tasks

• Setup i18n config and default locale /id
• Create /id and /en routes using Next.js i18n
• Add language toggle component using country flags
• Add base translation JSON files for both locales
• Update UI text to use translation function (e.g. t('home.title'))
• Test switching language keeps the current page
• Ensure navigation, SEO, and content loading works correctly

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Related

This will help the website be more inclusive and accessible to international visitors or potential partners.