Fix: use polite flag for chafa

[fiplox]

Chafa with sixel support is broken with lf. The problem and a fix is described in this post gokcehan/lf#1582

[rxmmah]

its still not working after the commit the images are pixelated alot

[heyzec]

Tested, can confirm this works

[UntimelyCreation]

Tested here too, works fine! Would really like to see this merged

[masroof-maindak]

@NikitaIvanovV can we please get this merged?

[SammyJenas]

Also confirming this works, using the Foot terminal

[ykhan21]

For the time being, you may be able to set a custom preview that is basically chafa -f sixels --polite on.
https://www.nikitaivanov.com/man1/ctpv#Defining_custom_previews

[Rikiub]

A temporal fix is paste in your ~/.config/ctpv/config the following code:

preview image image/* {{
	chafa -s "${w}x${h}" -f sixels --polite on "$f"
}}