[ui5-side-navigation]: keyboard handling does not work well for external links

[alexandar-mitsev]

Bug Description

Go to the side navigation sample: https://sap.github.io/ui5-webcomponents/nightly/components/fiori/SideNavigation/.

1. You can not activate an external link by pressing "Space"
2. If side navigation is collapsed and you have an external link in the second level - as a child, you can not activate it neither with "Space", nor with "Enter"

Affected Component

ui5-side-navigation

Expected Behaviour

Pressing "Enter" or "Space" should activate the external link in all cases.

Isolated Example

No response

Steps to Reproduce

1. Open https://sap.github.io/ui5-webcomponents/nightly/components/fiori/SideNavigation/
2. Edit the sample and add "collapsed" to the ui5-side-navigation
3. Navigate using the keyboard
4. Go to second item "External Link"
5. Press "Space" - it is not activated
6. Go to last element "Events"
7. Open the children menu
8. Navigate to "External Link" item
9. Press "Space" or "Enter" - it is not activated

Log Output, Stack Trace or Screenshots

No response

Priority

Medium

UI5 Web Components Version

2.7.0-rc.1

Browser

Chrome

Operating System

Windows

Additional Context

No response

Organization

No response

Declaration

• I’m not disclosing any internal or sensitive information.