chore: update copy in delete account dialog (#2015)

assets/l10n/intl_en.arb

@@ -4829,5 +4829,6 @@
   "ttsDisabledBody": "You can enable text-to-speech in your learning settings",
   "noSpaceDescriptionYet": "No space description created yet.",
   "tooLargeToSend": "This message is too large to send",
-  "leaveRoomDescription": "You're about to leave this chat. Other users will see that you have left the chat."
+  "leaveRoomDescription": "You're about to leave this chat. Other users will see that you have left the chat.",
+  "confirmUserId": "Please confirm your Pangea Chat username in order to delete your account."
 } 

lib/pages/chat_list/chat_list.dart

@@ -43,7 +43,6 @@ import '../../widgets/matrix.dart';
 import 'package:fluffychat/utils/tor_stub.dart'
     if (dart.library.html) 'package:tor_detector_web/tor_detector_web.dart';
 
-
 enum PopupMenuAction {
   settings,
   invite,

lib/pages/settings_security/settings_security.dart

@@ -87,7 +87,10 @@ class SettingsSecurityController extends State<SettingsSecurity> {
     final mxid = await showTextInputDialog(
       useRootNavigator: false,
       context: context,
-      title: L10n.of(context).confirmMatrixId,
+      // #Pangea
+      // title: L10n.of(context).confirmMatrixId,
+      title: L10n.of(context).confirmUserId,
+      // Pangea#
       validator: (text) => text == supposedMxid
           ? null
           : L10n.of(context).supposedMxid(supposedMxid),