fix(frontend): resolve getDateTimeFormatter issue

[yassinedorbozgithub]

Screenshots

• After the fix

• Before the fix

Summary

Fixes an issue in getDateTimeFormatter that could produce incorrect or inconsistent date/time formatting under certain conditions. The implementation has been updated to ensure formatter creation behaves reliably across supported use cases.

Why

The previous implementation could lead to incorrect formatting behavior and inconsistencies in the UI. This change improves the reliability and predictability of date/time formatting throughout the frontend.

How to review

• Review the changes in getDateTimeFormatter.
• Verify that the formatter is created correctly for the supported locales and formatting options.
• Check any components relying on this utility for potential regressions.

Validation

• Verified that date/time values are formatted correctly in the affected UI.
• Confirmed existing formatting behavior remains unchanged for unaffected scenarios.
• Ran the relevant frontend tests and linting.