feat: truncate lines to terminal width when using -l and -1 switches

Hello!

It would be nice to have (maybe as an option) the long lines truncated to the current terminal width, when using -l or -1 switches, so that any single line never overflows to the following.


Best of all, when the new hypotetical "--truncate" option is used, eza could manage the long paths in smart ways - example from my screenshot above:
the line
`Cookies -> C:\Users\raffaele.bianco\AppData\Local\Microsoft\Windows\INetCookies`
could be rendered as
`Cookies -> C:\Users\raffaele.bianco\AppData\Local\...\INetCookies`
or
`Cookies -> C:\Users\raffaele.bianco\...\INetCookies`
reducing a subset of the last path elements to a shorter "..." (accordingly to the current terminal width), but keeping the last folder for best readability.

Oh-my-posh can do something similar (if I remember correctly) - hoping that this is somewhat useful to know.

No files, tests, or entry points are named. Begin by tracing the -l and -1 switches and how terminal width is handled, then clarify whether --truncate and smart path shortening are required; done should mean long lines no longer overflow the terminal and the expected shortening behavior is specified.

Written by the indexing model from the issue text.