message: Add a HTTP header for the Switching board (lib)
diff: @@ -379,6 +379,9 @@ HTTPResponse HTTPClient::makeHttpRequest(
  // Request gzip unless downloading files
  poco_req.set("Accept-Encoding", "gzip");
  + // Set the Switching board header for Sync server requests
  + poco_req.set("X-Toggl-Client", "desktop");
  +
  if (!req.form) {
  std::istringstream requestStream(req.payload);
  