add display materials WIP

client/src/app/core/layout/layout.component.ts

@@ -39,6 +39,11 @@ export class LayoutComponent implements OnInit, OnDestroy {
       icon_url: 'assets/icons/logs.svg',
       link: '/' + this.current_department + '/log',
     },
+    {
+      name: 'Materials',
+      icon_url: '',
+      link: '/' + this.current_department + '/materials',
+    }
   ];
   date = new Date();
   clockSubscription: Subscription | null = null;