Implement fuzzy search for interactive `less`

[Rot127]

Is your feature request related to a problem? Please describe.

In all interactive searches (~...), it would be nice to support fuzzy/approximate string search. It is just very much convenient. Especially for many entries in the list

Describe the solution you'd like

Implement the fuzzy search and use it instead of normal grep it in these ~... windows.

Describe alternatives you've considered

None.

Additional context

We could wait until the TUI refactor. But it might not be too complicated to implement.

[XVilka]

It should be either a different command or an option. Something like search.grep={exact,regex,fuzzy}?