feat: add nord theme

added nord theme from github.com/gbprod/nord.nvim
fixed a typo

modules/plugins/statusline/lualine/supported_themes.nix

@@ -4,4 +4,5 @@
   "catppuccin"
   "oxocarbon"
   "gruvbox"
+  "nord"
 ]

modules/plugins/theme/supported-themes.nix

@@ -177,4 +177,14 @@ in {
     '';
     styles = ["main" "moon" "dawn"];
   };
+  nord = {
+    setup = {transparent ? false, ...}: ''
+      require("nord").setup({
+        transparent = ${boolToString transparent},
+        search = "vscode", -- [vim|vscode]
+      })
+
+      vim.cmd.colorscheme("nord")
+    '';
+  };
 }