restore window resize listener

frontend/src/app/components/menu/menu.component.scss

@@ -6,7 +6,7 @@
   position: sticky;
   top: 65px;
   transition: 0.25s;
-  margin-left: -250px;
+  margin-left: -225px;
   box-shadow: 5px 0px 30px 0px #000;
   padding-bottom: 20px;
 }

frontend/src/app/components/start/start.component.ts

@@ -194,6 +194,7 @@ export class StartComponent implements OnInit, OnDestroy, DoCheck {
     }, 300);
   }
 
+  @HostListener('window:resize', ['$event'])
   onResize(): void {
     this.chainWidth = window.innerWidth;
     this.isMobile = this.chainWidth <= 767.98;