Add support for sending generic OBS websocket messages

This should allow to send OBS websocket vendor requests to other plugins
which offer an API via this method (e.g. vertical OBS)

src/utils/connection-manager.cpp

@@ -131,6 +131,7 @@ Connection *GetConnectionByName(const QString &name)
 {
 	return GetConnectionByName(name.toStdString());
 }
+
 Connection *GetConnectionByName(const std::string &name)
 {
 	for (auto &con : switcher->connections) {