2024-July-25 - 2.7.14820

Startup behavior: Simplify extraction algorithm (#12767)

When handling '.zip' files in the 'downloadedMaps' folder on startup,
update extraction algorithm to be:
- If "extraction target" does not exist, then proceed with extraction
- If extraction target exists & is game-headed, then no-op
- If extraction target exists & is game-headless, then delete extraction
  target, and then proceed with extraction.

We also simplify extraction, we can rename the temp folder and/or delete
it more simply.