Navigation items: Create motion designs and micro animations

[kaylachumley]

The navigation component need micro animations. React Demo

The goal of this issue is the define the following behaviors:

• [x] Define open/close expansion behavior for navigation drilldown
• [x] Define hover/click animation for navigation items
• [x] Define fade in/out animation for navigation items
• [x] Define hover/click animation for horizontal nav
• [x] Create animation concept in Figma
• [x] Define and assign semantic tokens for each property

[kaylachumley]

Figma prototype with semantic token annotations

[andrew-ronaldson]

Closed with https://github.com/patternfly/patternfly/issues/6597