Hardcoded year in multiple files

[Nidhisharora]

The footer currently displays a hardcoded year:
© 2026 Expenceflow.All rights reserved

This will become outdated in the future.
I would like to update it so the year is dynamically generated using JavaScript (e.g., new Date().getFullYear()).

This ensures the footer always remains correct without manual changes on all pages
If this improvement sounds good, please assign this issue to me.

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[Nidhisharora]

Thanks for assigning! PR already opened at #393.
Please review when possible.

[github-actions]

⚠️ Inactivity Warning

  @Nidhisharora, this issue has been inactive for **15 hours**.

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