fix: remove identical styling

Author: mustafa-sayyed

src/components/pages/FoundationHeader.astro

@@ -295,6 +295,8 @@ import ExternalIcon from "../../../public/img/icon-external.svg";
     .menu-item--level-2 > .is-active {
       text-decoration: underline;
       text-decoration-color: currentColor;
+      text-decoration-thickness: 2px;
+      text-underline-offset: 8px;
     }
 
   @media screen and (max-width: 479px) {
@@ -339,12 +341,6 @@ import ExternalIcon from "../../../public/img/icon-external.svg";
       display: block;
     }
 
-    .menu-item--level-1 > .is-active,
-    .menu-item--level-2 > .is-active {
-      text-decoration-thickness: 1.5px;
-      text-underline-offset: 5px;
-    }
-
     .switch-link:hover {
       background-color: var(--color-header-accent);
     }
@@ -475,11 +471,6 @@ import ExternalIcon from "../../../public/img/icon-external.svg";
       display: none;
     }
 
-    .menu-item--level-1 > .is-active,
-    .menu-item--level-2 > .is-active {
-      text-decoration-thickness: 2px;
-      text-underline-offset: 8px;
-    }
   }
 </style>