Merge UADAggregator into UADDisplay

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.0.0 DXP FP47, 7.0.0 DXP SP8, Master
• Component/s: None
• Labels:
  • liferay-digital-enterprise-70-sp8
  • liferay-fixpack-de-47-7010
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/57927

Since UADAggregator and UADDisplay are completely interdependent (each one is useless without the other), we should merge them together into a single class.