Autocomplete menu does not work correctly on mobile phones

[kovzol]

Issue summary

When using the autocomplete feature on a mobile phone, the autocomplete feature cannot be used properly.

Expected behavior

After selecting the possible completion options, it is shown in the terminal input row, and after continuing the typing, the selected completion should remain on the input row.

Actual behavior

After selecting the possible completion options, it is shown in the terminal input row, but after continuing the typing, the selected completion disappears.

Steps to reproduce

When visiting https://matek.hu/tarski/webtarski.html, then pressing q, then selecting "qepcad-qe", this appears on the input row, but after continuing typing, only "q" is shown.

Browser and OS

Chrome 109.0.5414.117, Samsung Galaxy M23, Android 13

Additional notes

[jcubic]

I was trying to debug I think that I fix the issue, but it's hard to tell because Google Chrome 108 broke the library by changing the behavior of height: 100% the issue is tracked here #859.