I have my system temp dir on a different drive than the default, so this
error was spammed in the logs. This also broke Zed in many ways, one of
which was the AI system failing to work since it couldn't save settings.
```
2024-08-20T22:39:54.0660708-07:00 [ERROR] Failed to write settings to file "\\\\?\\C:\\Users\\myuser\\AppData\\Roaming\\Zed\\settings.json"
Caused by:
0: failed to persist temporary file: The system cannot move the file to a different disk drive. (os error 17)
1: The system cannot move the file to a different disk drive. (os error 17)
```
Note: This problem is probably present on MacOS due to the requirement
of the underlying api being used. I do not have Mac, so I cannot test
this. This PR only solves this issue on Windows.
Closes#16571
Release Notes:
- fix atomic_write failing on windows if destination is on a different
drive than the OS's temp dir.
e1c42a5c85