feat: Add new intl-based formatter builder

[nmn]

New universal formatter based on browser's built-in Intl package.

Introducing a new API to create a better formatter using the Intl module built into Javascript.

You can use it something like this:

import {makeIntlFormatter} from 'react-timeago/defaultFormatter';

const intlFormatter = makeIntlFormatter();

<TimeAgo formatter={intlFormatter} date={new Date()} />

makeIntlFormatter takes an options object where you can configure locale and some other options which are then passed into Intl.RelativeTimeFormat.

[Copilot]

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