[ACA-2044] custom library icon consistency (#826)

* add custom library icon

* isLibrary custom type guard

* meaningfull cutom class name

* update isLibrary check for trash

* use custom image for libraries in trash

* remove duplicate subscriber

* change image source color

* remove custom class

* remove library image class

* remove custom type guard

src/app/components/search/search-libraries-results/search-libraries-results.component.html

@@ -36,6 +36,7 @@
                   [selectionMode]="'single'"
                   [sorting]="[ 'name', 'asc' ]"
                   [node]="data"
+                  [imageResolver]="imageResolver"
                   (node-dblclick)="navigateTo($event.detail?.node)"
                   (name-click)="navigateTo($event.detail?.node)">