message: Always send an error on err_cannotsendtochan
diff: @@ -292,7 +292,7 @@ export class BridgedClient extends EventEmitter {
  });
  connInst.client.addListener("error", (err: IrcMessage) => {
  // Errors we MUST notify the user about, regardless of the bridge's admin room config.
  - const ERRORS_TO_FORCE = ["err_nononreg", "err_nosuchnick"];
  + const ERRORS_TO_FORCE = ["err_nononreg", "err_nosuchnick", "err_cannotsendtochan"];
  if (!err || !err.command || connInst.dead) {
  return;
  }
  