Add Support for Custom Calendar Attributes in Dates Components

[mnakhli]

Dependencies check up

• I have verified that I use latest version of all @mantine/* packages

What version of @mantine/* packages do you have in package.json?

Latest

What package has an issue?

@mantine/dates

What framework do you use?

Next.js

In which browsers you can reproduce the issue?

All

Describe the bug

Description:
To enable the implementation of other calendars, it seems that dayjs and its plugins are sufficient. However, the issue lies in the flexibility of certain date-related functions.

If the two functions, getMonthDays and isSameMonth, could be injected into the component as attributes, the problem would be fully resolved.

Proposed Solution:
Allow getMonthDays and isSameMonth to be passed as attributes when calling the component. This would make the component more adaptable to different calendar systems without requiring extensive modifications.

Benefits:

• Greater flexibility for implementing alternative calendars.
• Minimal changes required to integrate custom date logic.

If possible, include a link to a codesandbox with a minimal reproduction

No response

Possible fix

No response

Self-service

• I would be willing to implement a fix for this issue