feat: add set-as-my-location from map long-press, connector and UI improvements

Add "Set as my location" option to the map long-press bottom sheet,
allowing users to set their device position directly from the map.
Includes connector, chat, contacts, and message retry service improvements.

lib/l10n/app_localizations_it.dart

@@ -1510,6 +1510,9 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get map_shareMarkerHere => 'Condividi marcatore qui';
 
+  @override
+  String get map_setAsMyLocation => 'Imposta come la mia posizione';
+
   @override
   String get map_pinLabel => 'Etichetta PIN';