feat: distinguish actual scrollback newlines vs vim.o.columns hardwrapped newlines

[neg-serg]

Steps to reproduce:

Generate extremely long newline, for example:

for t in {1..100}; do echo -ne eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeemmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm;

There is only one long string here, but it's impossible to select with pager as the single line. In the same time with the mouse it remains be possible via kitty scroll-back. Is there any way to get around this problem?

This can often be seen in practice when parsing absurdly large log lines. After this, they are very inconvenient to copy using the keyboard, which adds manual work. The problem can be worked around using tmux, but it increase overall latency.