message: Add a prettier message for when a user cannot talk
diff: @@ -873,8 +873,7 @@ export class IrcHandler {
  const botUser = new MatrixUser(this.ircBridge.appServiceUserId);
  -
  - if (ircMsg && ircMsg.command === "err_nosuchnick") {
  + if (ircMsg?.command === "err_nosuchnick") {
  const otherNick = ircMsg.args[1];
  const otherUser = new MatrixUser(client.server.getUserIdFromNick(otherNick));
  const room = await this.ircBridge.getStore().getMatrixPmRoom(client.userId, otherUser.userId);
  @@ -921,6 +920,11 @@ export class IrcHandler {
  adminRoom = fetchedAdminRoom;
  }
  +
  + if (ircMsg?.command === "err_cannotsendtochan") {
  + msg = `Message could not be sent to ${ircMsg.args[1]}`;
  + }
  +
  const notice = new MatrixAction("notice", msg);
  await this.ircBridge.sendMatrixAction(adminRoom, botUser, notice);
  return undefined;
  