* return to previous page on close
* update e2e
* [ADF-4424] Improve PreviousRouteService to use it in pdfViewer
* change previous Url logic
* remove navigation logic
* remove test
* Update pdfViewer.component.spec.ts
* back button logic for viewer outlet
* unit tests
* remove fdescribe
* remove unused service
* e2e
* return to location
* remove click filter step
* remove unnecessary test steps
* remove un existen export
* unify preview between PS and CS in demo shell
* fix dispalyname property