feat(i18n): add hindi support (#704)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Author: trivikr

config/i18n.ts

@@ -134,6 +134,11 @@ const locales: (LocaleObjectData | (Omit<LocaleObjectData, 'code'> & { code: str
     file: 'de-DE.json',
     name: 'Deutsch',
   },
+  {
+    code: 'hi-IN',
+    file: 'hi-IN.json',
+    name: 'हिंदी',
+  },
   {
     code: 'hu-HU',
     file: 'hu-HU.json',