- Add multi-language support with i18next and react-i18next
- Implement user-selectable date format preferences (5 formats)
- Add time format preferences (12-hour/24-hour)
- Implement RTL (right-to-left) support for Arabic, Hebrew, Persian, Urdu
- Add first day of week preference
- Create LocalizationContext for managing i18n settings
- Add LocalizationSettings component to Settings page
- Include sample translations: English, Spanish, Arabic
- Configure 10 languages: en, es, fr, de, ar, he, zh, ja, pt, ru
- Add translation management documentation and Crowdin config
- Create date formatting utilities that respect user preferences
- Add RTL CSS styles for proper layout mirroring
- Update Settings and ThemeToggle components to use translations
- Add comprehensive documentation (implementation guide, quick reference, translation guide)
All user preferences are persisted to localStorage and apply throughout the app.
tailwind.config.js — Added corePlugins: { preflight: false } to disable Tailwind's Preflight reset. Preflight forces svg { display: block } which breaks MUI Joy's inline icon layout inside <Select>, <Autocomplete>, etc., making the icon area unclickable. Since MUI Joy's <CssBaseline /> already provides a CSS reset, Preflight was redundant.
index.css — Removed the global button, a, [role="button"] { transform: translateZ(0); backface-visibility: hidden; } rule. This was creating new stacking contexts on every button element, which interfered with MUI Joy's internal pseudo-element overlays used for click-target expansion.
