Update last modified date to now for all templates created

[cgaarden]

Summary of the Pull Request

• Implemented fix for 35391, as I do think that last modified should match created in this case to avoid confusion.
• Update last modified time stamp to now for all files created.

PR Checklist

• Closes: New+ Modified Date / Auto Select #35391
• Communication: in regular communication
• [n/a] Tests: Added/updated and all pass
• [n/a] Localization: All end user facing strings can be localized
• [n/a] Dev docs: Added/updated
• [n/a] New binaries: Added on the required places
  • [n/a] JSON for signing for new binaries
  • [n/a] WXS for installer for new binaries and localization folder
  • [n/a] YML for CI pipeline for new test projects
  • [n/a] YML for signed pipeline
• [n/a] Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Update last modified time stamp to now for all files created

Validation Steps Performed

• Tested on Windows 10
• Tested on Windows 11

1. New+ from template where single file where the template last modified was "old"
2. New+ from template where directory with a few files where last modified was "old"
3. Checked that there aren't any spammy tracing (need to further investigate as it looks like we no more are logging number of templates)