feat: add lsar.yazi plugin

lsar.yazi/README.md

@@ -0,0 +1,39 @@
+# lsar.yazi
+
+Previewing archive contents with `lsar`, which is something you might not want to use anyway.
+
+It was the default archive previewer before Yazi v0.3, and after then, it was replaced with a faster and more efficient `7zip` previewer.
+
+This plugin is here just in case you're still interested in the old behavior,
+but we strongly discourage using it unless you encounter some issues with `7zip` when previewing CJK characters - `lsar` usually does a better job recognizing these characters.
+
+## Installation
+
+```sh
+ya pack -a yazi-rs/plugins#lsar
+```
+
+## Usage
+
+Add this to your `~/.config/yazi/yazi.toml`:
+
+```toml
+[[plugin.prepend_previewers]]
+mime = "application/{,g}zip"
+run  = "lsar"
+
+[[plugin.prepend_previewers]]
+mime = "application/x-{tar,bzip*,7z-compressed,xz,rar}"
+run  = "lsar"
+```
+
+Make sure you have `unar` installed, and have `lsar` in your `$PATH`. You can install it with:
+
+```sh
+# Arch Linux
+sudo pacman -S unarchiver
+# MacOS
+brew install unar
+# Windows
+scoop install unar
+```