F #3951: fix front elements for test

Signed-off-by: Jorge Lobo <jlobo@opennebula.io>

src/fireedge/src/client/components/Header/Popover.js

@@ -49,7 +49,7 @@ const HeaderPopover = ({
       >
         {icon}
         {buttonLabel && (
-          <span className={classes.buttonLabel}>{buttonLabel}</span>
+          <span className={classes.buttonLabel} data-cy="header-username">{buttonLabel}</span>
         )}
       </Button>
       <Popover

src/fireedge/src/client/components/Sidebar/SidebarLink.js

@@ -29,6 +29,7 @@ const SidebarLink = ({ label, path, icon: Icon, devMode, isSubItem }) => {
   return (
     <ListItem
       button
+      component='li'
       onClick={handleClick}
       selected={pathname === path}
       className={clsx({ [classes.subItem]: isSubItem })}