refactor(starship): move config to own module

Should make evaluation faster.

modules/nixos/default.nix

@@ -17,6 +17,7 @@ in
     ./options.nix
     ./dev.nix
     ./gui.nix
+    ./starship.nix
     ./styling.nix
   ];
 
@@ -34,33 +35,7 @@ in
       pkgs.unzip
     ];
 
-    programs = {
-      # Default shell
-      fish.enable = true;
-      # Shell prompt
-      starship = {
-        enable = true;
-        settings = lib.mkMerge [
-          {
-            format = "$time$all";
-            add_newline = false;
-            cmd_duration.min_time = 500;
-            cmd_duration.show_milliseconds = true;
-            time.disabled = false;
-            status = {
-              format = "[$signal_name$common_meaning$maybe_int](red)";
-              symbol = "[✗](bold red)";
-              disabled = false;
-            };
-            sudo.disabled = false;
-          }
-          # Add nerdfont symbols
-          (lib.mkIf cfg.styling.enable (import ./starship-nerdfont-symbols.nix))
-          # Remove the `in`s and `on`s from the prompt
-          (import ./starship-shorter-text.nix)
-        ];
-      };
-    };
+    programs.fish.enable = true;
 
     environment.etc = keysFromGithub;
     services = {