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/nix/nufetch.nu

@@ -0,0 +1,8 @@
+export def main [] { 
+{
+"kernel": $nu.os-info.kernel_version, 
+"nu": $env.NU_VERSION, 
+"packages": (ls /etc/profiles/per-user | select name | prepend [[name];["/run/current-system/sw"]] | each { insert "number" (nix path-info --recursive ($in | get name) | lines | length) | insert "size" ( nix path-info -S ($in | get name) | parse -r '\s(.*)' | get capture0.0 | into filesize) | update "name" ($in | get name | parse -r '.*/(.*)' | get capture0.0 | if $in == "sw" {"system"} else {$in}) | rename "environment"}), 
+"uptime": (sys host).uptime 
+}
+}