build: date-fns as regular dependency

[benasher44]

Description

See #2240

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Checklist

Before submitting your pull request, please make sure the following is done:

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• I have followed the coding guidelines in this project
• I have tested my changes on different browsers and screen sizes

Linked Issues

#2240

[gpbl]

Thanks, but what about the locale prop, the jalali calendar and the utc dates?

While we can add date-fns-jalali and @date-fns/utc to the dependencies, I'm not about the right approach for the locale prop.

I'm considering something like:

- import { es } from "date-fns/locale";
+ import { es } from "react-day-picker/locale";

<DayPicker locale={es} />; // Set the locale to Spanish