nushell: Small fixes

tree/.config/nushell/config.nu

@@ -30,6 +30,13 @@ source theme.nu
 $env.config = {
     show_banner: false
 
+    display_errors: {
+        exit_code: false # assume the external command prints an error message
+        # Core dump errors are always printed, and SIGPIPE never triggers an error.
+        # The setting below controls message printing for termination by all other signals.
+        termination_signal: true
+    }
+
     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.

tree/.config/nushell/env.nu

@@ -78,6 +78,10 @@ $env.NU_PLUGIN_DIRS = [
 	# ($nu.default-config-dir | path join 'plugins') # add <nushell-config-dir>/plugins
 ]
 
+if XDG_CONFIG_HOME not-in $env {
+	$env.XDG_CONFIG_HOME = $"($env.HOME)/.config"
+}
+
 $env.PATH = ($env.PATH | split row (char esep) | prepend [
 	($env.HOME + "/.local/bin"),
 	($env.HOME + "/.cargo/bin"),