support react v18

[SwapnilSoni1999]

Currently the package is working with --legacy-peer-deps option but can we fix it by allowing it installing without such options?

[bjarkehs]

Hi! I had the same issue, so I forked and released a working version for React 18. You can install it with npm i @bjarkehs/react-nice-dates you can find the code here https://github.com/bjarkehs/react-nice-dates

Only annoying part is you have to change your imports from import {} from 'react-nice-dates' to import {} from '@bjarkehs/react-nice-dates'