feat: Add config hideTypingUsernames

lib/app_config.dart

@@ -16,6 +16,7 @@ abstract class AppConfig {
   static bool renderHtml = false;
   static bool hideRedactedEvents = false;
   static bool hideUnknownEvents = false;
+  static const bool hideTypingUsernames = false;
   static const bool hideAllStateEvents = false;
   static const String inviteLinkPrefix = 'https://matrix.to/#/';
   static const String pushNotificationsChannelId = 'fluffychat_push';

lib/l10n/intl_en.arb

@@ -1757,6 +1757,13 @@
       "unreadChats": {}
     }
   },
+  "numUsersTyping": "{count} users are typing…",
+  "@numUsersTyping": {
+    "type": "text",
+    "placeholders": {
+      "count": {}
+    }
+  },
   "userAndOthersAreTyping": "{username} and {count} others are typing…",
   "@userAndOthersAreTyping": {
     "type": "text",

lib/utils/room_status_extension.dart

@@ -2,6 +2,7 @@ import 'package:famedlysdk/famedlysdk.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 
+import '../app_config.dart';
 import 'date_time_extension.dart';
 
 extension RoomStatusExtension on Room {
@@ -37,7 +38,13 @@ extension RoomStatusExtension on Room {
     var typingUsers = this.typingUsers;
     typingUsers.removeWhere((User u) => u.id == client.userID);
 
-    if (typingUsers.length == 1) {
+    if (AppConfig.hideTypingUsernames) {
+      typingText = L10n.of(context).isTyping;
+      if (typingUsers.first.id != directChatMatrixID) {
+        typingText =
+            L10n.of(context).numUsersTyping(typingUsers.length.toString());
+      }
+    } else if (typingUsers.length == 1) {
       typingText = L10n.of(context).isTyping;
       if (typingUsers.first.id != directChatMatrixID) {
         typingText =