delivery time accepting negative values

Describe the bug
the average time for food delivery is accepting negative values which it shouldn't at all

To Reproduce
Steps to reproduce the behavior:

Go to 'vendors'
Click on 'add restaurant'
Scroll down to 'registration form'>> Delivery time
See error
Expected behavior
input should be +ve and with a modulus of 60

Screenshots
image

Desktop (please complete the following information):

OS: Windows
Browser Chrome
Version 122.0.6261.95 (Official Build) (64-bit)

Reproduce the issue through vendors > add restaurant > registration form, focusing on the Delivery time field in Chrome. Check the existing validation for that input and clarify how the stated modulus of 60 should apply. Done means negative values are rejected and the accepted values match the intended delivery-time rule.

Written by the indexing model from the issue text.