fix: Correct hours-to-days conversion and improve Event Limits UX

[AritraDey-Dev]

What does this PR do?

• This PR fixes a math logic error in convertToNewDurationType.ts and enhances the "Minimum Booking Notice" UI.

Fix : Corrected the hours_days conversion which was incorrectly multiplying by 24 (e.g., 24 hours converted to 576 days).
UX Improvement: Enabled automatic value conversion in the UI. Previously, changing the dropdown (e.g., Hours to Days) would not change the value at all. It now correctly recalculates the number (e.g., 24 Hours → 1 Day).
test: Added unit tests for the time conversion logic.

Visual Demo (For contributors especially)

A visual demonstration is strongly recommended, for both the original and new change (video / image - any one).

Video Demo (if applicable):

Before:

Screencast.from.2026-02-15.02-50-34.webm

After:

Screencast.from.2026-02-14.23-27-22.webm

• Add side-by-side screenshots of the original and updated change.
• Highlight any significant change(s).

Mandatory Tasks (DO NOT REMOVE)

• I have self-reviewed the code (A decent size PR without self-review might be rejected).
• I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
• I confirm automated tests are in place that prove my fix is effective or that my feature works.

How should this be tested?

To test, run yarn dev, navigate to an event's Limits tab, and switch the Minimum Booking Notice units to verify that the value now automatically recalculates (e.g., 24 Hours → 1 Day).

[CLAassistant]

All committers have signed the CLA.

[cubic-dev-ai]

No issues found across 3 files

[romitg2]

@AritraDey-Dev Thank you for your work! but this UX change is not really required.
also from next time please open issue and wait until it gets approval before you start working on it to avoid unnecessary effort.

[AritraDey-Dev]

@romitg2 thanks for the feedback! since the UI change isn't needed,i can remove it from this patch. However, there is a genuine logic bug in convertToNewDurationType.ts where the hours-to-days conversion incorrectly multiplies instead of dividing (causing 24 hours to equal 576 days) as i mentioned in the pr description too.
so if that makes sense to fix that logic,i can only keep that fix in this PR,wdyt?

[romitg2]

@romitg2 thanks for the feedback! since the UI change isn't needed,i can remove it from this patch. However, there is a genuine logic bug in convertToNewDurationType.ts where the hours-to-days conversion incorrectly multiplies instead of dividing (causing 24 hours to equal 576 days) as i mentioned in the pr description too. so if that makes sense to fix that logic,i can only keep that fix in this PR,wdyt?

@AritraDey-Dev If that's the case then it would be great to fix it! could you please create new PR and Issue for that? Thank you!

[AritraDey-Dev]

created here #27964