message: don't connect during print
diff: @@ -59,7 +59,7 @@ export class StandbyComponent implements OnInit {
  private checkConnection(): void {
  this.http.get(this.configService.getURL('connection'), this.configService.getHTTPHeaders()).subscribe(
  (data: OctoprintConnectionAPI): void => {
  - if (data.current.state !== 'Operational') {
  + if (data.current.state === 'Closed') {
  if (this.connectionRetries === 0) {
  this.connectionRetries = 3;
  this.setConnectionError();
  @@ -67,6 +67,9 @@ export class StandbyComponent implements OnInit {
  this.connectionRetries--;
  setTimeout(this.connectToPrinter.bind(this), 500);
  }
  + } else if (data.current.state === 'Error') {
  + this.connectionRetries = 3;
  + this.setConnectionError();
  } else {
  this.disableStandby();
  }
  