React18 compatibility

[marcelovicentegc]

Hey, all! I'm opening this PR because I came across the errors reported on #153 and the changes on this PR made it work on my React18 + NextJS project. I have no idea why it worked, but I have patched these changes in my application and nothing broke.

All I know is that I am using it correctly (per docs), along with React 18 + NextJS:

<Truncate lines={width < breakpoints.md ? 4 : 2}>
    A text as string, as you can see, no text formatting, no html, markdown or any formatting language here.
</Truncate>

In case anyone is interested in moving this piece of code forward in this library, go ahead! cc @pablosichert

[allanwsilva]

@marcelovicentegc Should the reference to node in package.json be bumped as well?