fix: do not grow autoresized text area on first input

[barmac]

No description provided.

[nikku]

Thanks for looking into this. I don't understand why the scrollHeight check should be necessary. We enforce a minimum height via CSS. Removing it (b1b8a10) the test still passes.

There is a couple of nuances that we need to be aware on non MacOS systems regarding scrollbars. Scroll height will always be < then offsetHeight once resized, hence we must make the actual height magic 2px bigger than scroll height:

If we don't do that then a pesky scrollbar appears every time we auto-resize.

Finally, revisiting this I find that our cap of 150px is an arbitrary one, and dangerous, too. We'd need to properly handle manual user resize in order to turn that into a meaningful thing. I've removed it via 29e9612.

Please check if rows=1 was the actual fix for the issue. Consider squashing my PRs then.

[nikku]

I think this can be simplified, and + 2px must be kept: #216 (comment).

[barmac]

It still grows on MacOS / Chrome. It looks like the +2px causes this:

Screen.Recording.2023-02-08.at.08.57.48.mov

[barmac]

Please check if rows=1 was the actual fix for the issue. Consider squashing my PRs then.

rows=2 makes it grow to 2 lines height on my machine.