Changed box shaddow of middle button in tabs

src/app/tabs/tabs.component.scss

@@ -54,7 +54,7 @@
             border-radius: 50%;
             position: relative;
             transform: translateY(calc(-90vw / 13))scale(0.9);
-            box-shadow: 0px 0px 5px var(--black);
+            box-shadow: 0px 0px 5px var(--light-grey);
 
             .icon {
                 fill: var(--teal-green);