Library theming: Update Tree view component in design kit

[evwilkin]

Update the Tree view component in the PatternFly design kit to align with the unified theme. Update Figma files, styles, documentation, and ensure unified visual consistency throughout.

Deliverables:

• Update tokens

• Include new variants

• Update branded icons

• Address audit fixes:

• Boolean inconsistency updates (checklist here)

• .Treenode base component background fill on selected goes beyond the container fill/width - set to fill x hug

• The ‘With action’ boolean is set to an absolute position so it does not auto adjust to the size of the base component width - fix absolute position of action boolean

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Jira Issue: PF-3774

[evwilkin]

Closed via Jira sync - Jira issue PF-3774 was closed.

[evwilkin]

Closed via Jira sync - Jira issue PF-3774 was closed.

[patternfly-jira-sync]

Closed via Jira sync - Jira issue PF-3774 was closed.