shells/nushell: fix starship prompt

users/profiles/shells/nushell.nix

@@ -4,7 +4,12 @@
     settings = {
       complete_from_path = true;
       ctrlc_exit = true;
-      prompt = "STARSHIP_SHELL= starship prompt";
+      startup = [
+        "mkdir ~/.cache/starship"
+        "starship init nu | save ~/.cache/starship/init.nu"
+        "source ~/.cache/starship/init.nu"
+      ];
+      prompt = "starship_prompt";
     };
   };
 }

users/profiles/starship.nix

@@ -17,8 +17,7 @@
           ([╳](bold grey) $status$cmd_duration)
           [┌┨[$username@$hostname](${section.user_host})┠(┨$shell$shlvl┠)──(┨$nix_shell┠)───────────┨](${line_style})
           [┝┫$directory(┣━┫$git_branch$git_status(@$git_commit)( $git_metrics)( $git_state))┃](${line_style})
-          [└┨](${line_style})$character
-        '';
+          [└┨](${line_style})$character'';
 
         character = rec {
           success_symbol = "[❯](bold purple)";