[@mantine/core] Select: More stable useEffect dependency for search

[DoubleJ-G]

I was tracking down the issue mentioned in #4995 and discovered it was due to multiple renders caused by the useEffect hook.

Often times the data prop isn't a stable reference so using the optionsLockup which is derived from it in a useEffect was causing unnecessary renders.

Instead, I have used the selectedOption in the dependency array which seems to be more stable even when data changes.

[rtivital]

Thanks!

[VugarAhmadov]

Thanks! works like a charm.