Log to specific instead of working directory

[sanmai-NL]

• Add a configuration setting logs_dir/PDM_LOGS_DIR.
• Improve handling of temporary file to guard against TOCTOU defects.
• Reduce couping between termui and core to avoid cyclic dependency.

Pull Request Checklist

• [ ] A news fragment is added in news/ describing what is new.
• [ ] Test cases added for changed code.

Describe what you have changed in this PR.

[sanmai-NL]

Resolves #2398. @frostming @pawamoy after your review, I'll add the news fragment. Not sure whether and how to test this.