fix: first item could not be selected (#561)

Author: syedsajjadkazmii

src/common/style.scss

@@ -1,7 +1,3 @@
-.dropdown-menu a:first-child {
-  pointer-events: none;
-}
-
 @media screen and (max-width: 768px) {
   .menu-content li:first-child {
     display: flex;