make rustdoc alias more practical

modules/desktop/firefox.nix

@@ -159,7 +159,7 @@
                   template = "https://docs.rs/{searchTerms}";
                 }
               ];
-              definedAliases = ["docd"];
+              definedAliases = ["doc"];
             };
             "rust std docs" = {
               urls = [

other/config.nu

@@ -798,7 +798,7 @@ def lcr [
 ] {
     ls **/*
     | where name ends-with $".($file_extension)" 
-    | each {|file| 
+    | par-each {|file| 
         open $file.name 
         | lines --skip-empty 
         | length }