OZG-2499 Tab "Historie" nicht disablen, sondern ausblenden

.. wenn Link "historie" nicht vorhanden

goofy-client/libs/vorgang-detail/src/lib/vorgang-detail-page/vorgang-detail-area/vorgang-detail-formular-daten/vorgang-detail-formular-daten.component.html

@@ -23,8 +23,7 @@
 					<goofy-client-vorgang-detail-attachment-list data-test-id="tab-attachments-list" [vorgangWithEingang]="vorgangWithEingang"></goofy-client-vorgang-detail-attachment-list>
 				</ng-template>
 		</mat-tab>
-		<mat-tab label="Historie"
-			[disabled]="vorgangWithEingang | notHasLink:vorgangWithEingangLinkRel.HISTORIE">
+		<mat-tab label="Historie" *ngIf="vorgangWithEingang | hasLink:vorgangWithEingangLinkRel.HISTORIE">
 				<ng-template matTabContent>
 					<goofy-client-vorgang-historie-container data-test-id="tab-historie-container" [vorgangWithEingang]="vorgangWithEingang"></goofy-client-vorgang-historie-container>
 				</ng-template>

goofy-client/libs/vorgang-detail/src/lib/vorgang-detail-page/vorgang-detail-area/vorgang-detail-formular-daten/vorgang-detail-formular-daten.component.spec.ts

@@ -145,22 +145,22 @@ describe('VorgangDetailFormularDatenComponent', () => {
 	})
 
 	describe('Tab Historie', () => {
-		it('should be enabled if Link "historie" exists', () => {
+		it('should be visible if Link "historie" exists', () => {
 			component.vorgangWithEingang = vorgangWithHistorie;
 
 			fixture.detectChanges();
 			const tab = getElementFromFixture(fixture, tabHistorie);
 
-			expect(tab).not.toHaveClass('mat-tab-disabled');
+			expect(tab).toBeInTheDocument();
 		})
 
-		it('should be disable if no Link "historie"', () => {
+		it('should not be visible if no Link "historie"', () => {
 			component.vorgangWithEingang = vorgang;
 
 			fixture.detectChanges();
 			const tab = getElementFromFixture(fixture, tabHistorie);
 
-			expect(tab).toHaveClass('mat-tab-disabled');
+			expect(tab).not.toBeInTheDocument();
 		})
 	})