ROENROLL-1986, ROENROLL-1987 fix observable subscription bugs

src/app/dars/dars-audit-view/dars-audit-view.component.ts

src/app/dars/dars-view/dars-view.component.ts

src/app/dars/metadata-table/metadata-table.component.ts

...-degree-audit-dialog/new-degree-audit-dialog.component.ts

...hat-if-audit-dialog/new-what-if-audit-dialog.component.ts

src/app/dars/store/effects.ts

src/app/dars/store/state.ts