Please fix UNICODE / wide character support in terminal
Local terminal over UART and also remote terminal over SSH on all Turris routers stop working after sending some UTF-8 character. SSH shell is completely ignoring LC locale settings for UTF-8 support and treats every send byte separately, ignoring UNICODE or wide character settings. This makes terminals unusable on modern systems.
Simple reproducer: Type echo á
then press backspace and then press enter. It should not write anything on the terminal. But currently it prints back garbage �
.