[update] Upate nushell configs to reflect the latest changes

config/nushell/config.nu

@@ -297,7 +297,7 @@ let light_theme = {
 
 
 # The default config record. This is where much of your global configuration is setup.
-let-env config = {
+$env.config = {
   ls: {
     use_ls_colors: true # use the LS_COLORS environment variable to colorize output
     clickable_links: true # enable or disable clickable links. Your terminal has to support links.
@@ -654,3 +654,4 @@ let-env config = {
 source starship.nu
 source zoxide.nu
 source alias.nu
+use conda.nu