Allow null in Sparkline data array since it supports connectNulls

[fengye87]

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?

7.10.1

What package has an issue?

@mantine/charts

What framework do you use?

Vite

In which browsers you can reproduce the issue?

All

Describe the bug

Since Sparkline supports connectNulls, we should change data prop type of number[] so to allow null element to be passed in.

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

[rtivital]

Fixed in 7.11.2