Move to upstream JoinRuleEvent

src/main.cpp

@@ -239,6 +239,7 @@ int main(int argc, char *argv[])
     Q_IMPORT_QML_PLUGIN(org_kde_neochat_chatbarPlugin)
 
     qml_register_types_org_kde_neochat();
+    qmlRegisterUncreatableMetaObject(Quotient::staticMetaObject, "Quotient", 1, 0, "JoinRule", u"Access to JoinRule enum only"_s);
 
     QQmlApplicationEngine engine;