[ADF-4424] Pdf Viewer - password dialog does not close when pressing Escape (#4622)

* 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

e2e/pages/adf/viewerPage.ts

@@ -50,6 +50,7 @@ export class ViewerPage {
     lastThumbnailDisplayed = element.all(by.css('adf-pdf-thumb')).last();
     passwordDialog = element(by.css('adf-pdf-viewer-password-dialog'));
     passwordSubmit = element(by.css('button[data-automation-id="adf-password-dialog-submit"]'));
+    passwordDialogClose = element(by.css('button[data-automation-id="adf-password-dialog-close"]'));
     passwordSubmitDisabled = element(by.css('button[data-automation-id="adf-password-dialog-submit"][disabled]'));
     passwordInput = element(by.css('input[data-automation-id="adf-password-dialog-input"]'));
     passwordError = element(by.css('mat-error[data-automation-id="adf-password-dialog-error"]'));
@@ -149,6 +150,11 @@ export class ViewerPage {
         BrowserVisibility.waitUntilElementIsVisible(this.pdfPageLoaded, 30000, `not loaded ${fileName}`);
     }
 
+    clickClosePasswordDialog() {
+        BrowserVisibility.waitUntilElementIsVisible(this.passwordDialogClose);
+        this.passwordDialogClose.click();
+    }
+
     checkImgViewerIsDisplayed() {
         BrowserVisibility.waitUntilElementIsOnPage(this.imgViewer);
     }