Restore newest-first ordering in listEvents

[MitchDrage]

Description

listEvents has returned events oldest-first since 4.19.1.0, so the newest event shows up last, for example at the bottom of the dashboard Events tile.

This PR adds ORDER BY to searchByIds.

Alternative considered: re-sorting the loaded rows in QueryManagerImpl.searchForEventsInternal to match the id list.
I went with the ORDER BY for simplicity. The trade-off is that both queries now state the order and must agree.

Closes #14277

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

Note the timestamps are now newest at the top.

How Has This Been Tested?

• New unit test EventJoinDaoImplTest#testSearchByIdsOrdersNewestFirst. It fails without the fix and passes with it.
• EventJoinDaoImplTest and QueryManagerImplTest pass.
• Tested in simulator.

How did you try to break this feature and the system with this change?

Nil