Changed . token to _dot

This change allows the dotfiles to work with chezmoi (e.g: on windows)
and improves grepability with neovim/telescope

dot_config/nushell/nu_scripts/modules/ls_mods/ls-hidden.nu

@@ -0,0 +1,7 @@
+
+export def ls-hidden [
+    --dir(-d):any # The directory you want to list
+] {
+    let dir = if ($dir | is-empty) { "." } else { $dir }
+	ls -a $dir | filter { ($in.name | into string | str starts-with '.') }
+}