feat: specify history_visibility when creating group chat

lib/src/client.dart

@@ -705,6 +705,7 @@ class Client extends MatrixApi {
     CreateRoomPreset preset = CreateRoomPreset.privateChat,
     List<StateEvent>? initialState,
     Visibility? visibility,
+    HistoryVisibility? historyVisibility,
     bool waitForSync = true,
     bool groupCall = false,
     Map<String, dynamic>? powerLevelContentOverride,
@@ -722,6 +723,17 @@ class Client extends MatrixApi {
         ));
       }
     }
+    if (historyVisibility != null) {
+      initialState ??= [];
+      if (!initialState.any((s) => s.type == EventTypes.HistoryVisibility)) {
+        initialState.add(StateEvent(
+          content: {
+            'history_visibility': historyVisibility.text,
+          },
+          type: EventTypes.HistoryVisibility,
+        ));
+      }
+    }
     if (groupCall) {
       powerLevelContentOverride ??= {};
       powerLevelContentOverride['events'] = <String, dynamic>{

lib/src/room.dart

@@ -45,6 +45,10 @@ const Map<GuestAccess, String> _guestAccessMap = {
   GuestAccess.forbidden: 'forbidden',
 };
 
+extension GuestAccessExtension on GuestAccess {
+  String get text => _guestAccessMap[this]!;
+}
+
 const Map<HistoryVisibility, String> _historyVisibilityMap = {
   HistoryVisibility.invited: 'invited',
   HistoryVisibility.joined: 'joined',
@@ -52,6 +56,10 @@ const Map<HistoryVisibility, String> _historyVisibilityMap = {
   HistoryVisibility.worldReadable: 'world_readable',
 };
 
+extension HistoryVisibilityExtension on HistoryVisibility {
+  String get text => _historyVisibilityMap[this]!;
+}
+
 const String messageSendingStatusKey =
     'com.famedly.famedlysdk.message_sending_status';
 
@@ -2138,7 +2146,7 @@ class Room {
       EventTypes.GuestAccess,
       '',
       {
-        'guest_access': _guestAccessMap[guestAccess],
+        'guest_access': guestAccess.text,
       },
     );
     return;
@@ -2163,7 +2171,7 @@ class Room {
       EventTypes.HistoryVisibility,
       '',
       {
-        'history_visibility': _historyVisibilityMap[historyVisibility],
+        'history_visibility': historyVisibility.text,
       },
     );
     return;