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/sourced/misc/cmd_stats.nu

@@ -0,0 +1,18 @@
+export def main [] {
+    let builtin = (scope commands | where type == "built-in" | length)
+    let external = (scope commands | where type == "external" | length)
+    let custom = (scope commands | where type == "custom" | length)
+    let keyword = (scope commands | where type == "keyword" | length)
+    let plugin = (scope commands | where type == "plugin" | length)
+    let total = (scope commands | length)
+
+    [
+        [command_type count];
+        [builtin $builtin]
+        [external $external]
+        [custom $custom]
+        [keyword $keyword]
+        [plugin $plugin]
+        [total_cmds $total]
+    ]
+}