improve styling of deactivated lines in stv students list

public/js/components/Stv/Studentenverwaltung/List.js

@@ -111,7 +111,7 @@ export default {
 				],
 				rowFormatter(row) {
 					if (row.getData().bnaktiv === false) {
-						row.getElement().classList.add('text-muted');
+						row.getElement().classList.add('text-black','text-opacity-50','fst-italic');
 					}
 				},
 
@@ -362,4 +362,4 @@ export default {
 		</div>
 		<list-new ref="new" :studiengang-kz="studiengangKz" :studiensemester-kurzbz="studiensemesterKurzbz"></list-new>
 	</div>`
-};
+};