[data-export] Add Opt-in Localization for Date-Time Formatting

[dmoruzzi]

Describe your changes

Introduce an opt-in localization feature within the Data Export settings (Options -> Data Export).

Issue ticket number and link

• [data-export] Add Opt-in Localization for Date-Time Formatting #674

Checklist before requesting a review

• I have read and understand the Contributions section
• Target branch is releaseCandidate and not master
• I have performed a self-review of my code
• I ran the unit tests and my PR does not break any tests
• I documented the changes I've made on the CHANGES.md and followed actual conventions
• I added a new section on how-to.md (optional)