feat(ui5-side-navigation): add navigation groups

[TeodorTaushanov]

No description provided.

[GerganaKremenska]

1. When collapsed is false, SideNavigation conatiner padding: 1.5rem 0.75rem 0.75rem 0.75rem;

2. Should space on group, expand it and collapse it?

[TeodorTaushanov]

1. When collapsed is false, SideNavigation conatiner padding: 1.5rem 0.75rem 0.75rem 0.75rem;
2. Should space on group, expand it and collapse it?

1. From the spec

• Desktop Specification (Compact) - padding: 1.5rem 0.75rem 0.75rem 0.75rem;
• Tablet Specification (Cozy) - padding: 0.5rem;

2. Collapse/Expand via Space and Enter key is removed.

[TeodorTaushanov]

When ui5-side-navigation-group or ui5-side-navigation-item with subitem children has the disabled property set, it shouldn't be able to be pressed or selected. Currently, disabled group or parent items are not focusable/in the tab chain, but they can still be pressed and trigger their expand/collapse. Instead, such items/groups should behave as in ui5 - making all their child items disabled as well and should not be interactive (see "Restricted" group in this sample).

This should be discussed with the interaction designers.

Answered.

[TeodorTaushanov]

When ui5-side-navigation-group or ui5-side-navigation-item with subitem children has the disabled property set, it shouldn't be able to be pressed or selected. Currently, disabled group or parent items are not focusable/in the tab chain, but they can still be pressed and trigger their expand/collapse. Instead, such items/groups should behave as in ui5 - making all their child items disabled as well and should not be interactive (see "Restricted" group in this sample).

This should be discussed with the interaction designers.

The "disabled behavior" will be fixed with another PR.

[BorisDafov]

I approve the change from UA perspective....