fix: update mobile navigation styles and comment out unused code

styles/navigation/index.css

@@ -29,8 +29,8 @@
 
 /* Mobile Navigation Style - Choose one of the following: */
 /* Accordion/dropdown style */
-/* @import "./nav-mobile-accordion.css"; */
+@import "./nav-mobile-accordion.css";
 /* Sliding viewport style */
-@import "./nav-mobile-sliding.css";
+/* @import "./nav-mobile-sliding.css"; */
 
 @import "./nav-footer.css";

styles/navigation/nav-mobile-accordion.css

@@ -23,10 +23,8 @@
 
             background: var(--color-cwc-blue-02);
             color: var(--color-white);
-            /* Cap the menu height to the visible viewport area so overflowing items
-               scroll inside the menu instead of letting the menu grow taller
-               than the screen. */
-            max-height: calc(100vh - var(--hgtHeader));
+            /* Cap the menu height to the visible viewport area so overflowing items scroll inside the menu instead of letting the menu grow taller than the screen. */
+            height: calc(100vh - var(--hgtHeader));
             top: var(--hgtHeader);
             width: 95%;
             z-index: 100;