fix(ui-top-nav-bar): truncate TopNavBar menu items properly

INSTUI-4577

Author: ToMESSKa

packages/ui-top-nav-bar/src/TopNavBar/TopNavBarMenuItems/styles.ts

@@ -51,8 +51,7 @@ const generateStyle = (
       flexDirection: 'row',
       alignItems: 'stretch',
       // padding to prevent focus ring getting cropped by `overflow: hidden`
-      padding: '0 0.125rem',
-      overflow: 'visible'
+      padding: '0 0.125rem'
     },
     submenuOption: {
       label: 'topNavBarMenuItems__submenuOption',