Problem description: when trying to use keyboard navigation in Edge browser it is not possible to navegate further than the global search element in the top menu.

Steps to reproduce:

1. Open zabbix frontend via Edge browser
2. Try to navigate till "Zabbix technical support" button on the top menu

Result: It is not possible as the focus cant move further than the global search element on the top menu:

Expected: It should be possible to navigate to any responsive element in the view.