experimental fork of lines.love for CJK support

bugfix: typing should delete highlighted text

The test harness now also mimics real usage more precisely.

Created by  Kartik K. Agaram  on June 20, 2022
VG75U7IM2ZQTGM2QETDT6QQ4CSLQPB4APK436POAAQJWOMINPIJAC
Change contents