feat!: remove special case for `_` prefixed files in windows

[jschpp]

On windows files prefixed with a _ were being ignored because some old applications used those files as pseudo dotfiles.

This was controversial when the feature was added way back when: https://github.com/ogham/exa/pull/820#pullrequestreview-1134991947

Fixes eza-community/eza#1220

[jschpp]

Yeah. I completely agree with you there. I'm not sure if removing is the right way to go forward here myself. I tried hiding this behind a cmd flag but couldn't quite get it to work since I'd need to add something like git_ignoring which will have to be included pretty much everywhere since it would touch the Files API

[fgimian]

I personally vote that this behaviour be removed completely as per this PR. The current behaviour is very unexpected and unusual, so much so that it feels like a bug. 😊

[jack-mil]

Any more thoughts from maintainers about getting this merged? Would love to see this annoyance dealt with.