pwa, save sample view preferences

src/app/sample/sample.component.ts

@@ -22,10 +22,6 @@ import {Observable} from 'rxjs';
 import {ModalService} from '@inst-iot/bosch-angular-ui-components';
 import {DataService} from '../services/data.service';
 
-// TODO: clean up this mess !!!
-
-// TODO: only show condition (if not set) and measurements in edit sample dialog at first
-// TODO: multiple samples for base data, extend multiple measurements, conditions
 
 @Component({
   selector: 'app-sample',