Fix interactive versus batch mode check

[opotowsky]

What is the change?

For determining if the current mode is batch or interactive, there is an isatty() check performed. This check worked properly on windows, but for some reason not on a linux cluster. It appears stdout works for windows and stdin works for linux but not vice versa. So I added an os-specific check.

Why is the change being made?

The hack that was made didn't work for cases with 1 task. This update works on both clusters, and removes a little hack we had put in place.

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Checklist

• This PR has only one purpose or idea.
• Tests have been added/updated to verify any new/changed code.

• The code style follows good practices.
• The commit message(s) follow good practices.

• The release notes have been updated if necessary.
• The documentation is still up-to-date in the doc folder.
• The dependencies are still up-to-date in pyproject.toml.