Frontend first draft

frontend/pweb/lib/app/timeago.dart

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+import 'package:timeago/timeago.dart' as timeago;
+
+import 'package:pweb/generated/i18n/app_localizations.dart'; // Ensure this file exports supportedLocales
+
+// Mapping of language codes to timeago message classes.
+final Map<String, timeago.LookupMessages> _timeagoLocales = {
+  'en': timeago.EnMessages(),
+  'ru': timeago.RuMessages(),
+  'uk': timeago.UkMessages(),
+  // Add more mappings as needed.
+};
+
+/// Initializes timeago using the supported locales from AppLocalisations.
+/// Optionally, [defaultLocale] can be set (defaults to 'en').
+void initializeTimeagoLocales({String defaultLocale = 'en'}) {
+  // Assume AppLocalisations.supportedLocales is a static List<Locale>
+  final supportedLocales = AppLocalizations.supportedLocales;
+  
+  for (final locale in supportedLocales) {
+    final languageCode = locale.languageCode;
+    if (_timeagoLocales.containsKey(languageCode)) {
+      timeago.setLocaleMessages(languageCode, _timeagoLocales[languageCode]!);
+    }
+  }
+  // Set the default locale.
+  timeago.setDefaultLocale(defaultLocale);
+}