[BE] Use MultiPanelSidebar component on Forms

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Data Engine
• Labels:
  • 7.4_soy_removal_must_have
• Epic Link: Migrate Forms current Sidebar
• Git Pull Request: https://github.com/liferay-forms/liferay-portal/pull/122

See what can be passed as `sidebarPanels` and `panels`

Link to https://issues.liferay.com/browse/LPS-124150.