[ADF-1949 ] Allow customization of the dropdown menu on document picker (#2660)

* [ADF-1949] Allow customization of the dropdown menu on document picker

- add as input properties the 'dropdownHideMyFiles' and the 'dropdownSiteList' to the destination picker, so the list of sites from the dropdown can be customized, if wanted
- add navigation on '-mysites-' entries on document-list
- use custom dropdown on the copy/move document picker

* [ADF-1949] do not use a custom dropdown on the copy/move document picker on ADF side, because this can be done only on ACA side

* [ADF-1949] handling the node-dblclick event on content-node-selector.component instead of doing it on the document-list component

- and update the sites-dropdown documentation file

* [ADF-1949] changes requested on code review

* [ADF-1949] fix failing tests

lib/content-services/content-node-selector/content-node-selector.component.html

@@ -28,6 +28,8 @@
 
     <adf-sites-dropdown
         (change)="siteChanged($event)"
+        [hideMyFiles]="dropdownHideMyFiles"
+        [siteList]="dropdownSiteList"
         data-automation-id="content-node-selector-sites-combo"></adf-sites-dropdown>
 
     <adf-toolbar>
@@ -60,6 +62,7 @@
                     [allowDropFiles]="false"
                     (folderChange)="onFolderChange()"
                     (ready)="onFolderLoaded($event)"
+                    (node-dblclick)="onNodeDoubleClick($event)"
                     data-automation-id="content-node-selector-document-list">
             <empty-folder-content>
                 <ng-template>