refactor: centralise home-manager configs in system configs

configs/programs/nvf/ui.nix

@@ -0,0 +1,52 @@
+{
+  programs.nvf.settings.vim = {
+    lsp = {
+      formatOnSave = true;
+      lightbulb.enable = true;
+      lspkind.enable = true;
+      otter-nvim.enable = true;
+      trouble.enable = true;
+    };
+    binds = {
+      cheatsheet.enable = true;
+      whichKey.enable = true;
+    };
+    debugger.nvim-dap = {
+      enable = true;
+      ui.enable = true;
+    };
+    notes.todo-comments.enable = true;
+    telescope.enable = true;
+    statusline.lualine.enable = true;
+    treesitter = {
+      enable = true;
+      autotagHtml = true;
+      fold = true;
+    };
+    notify.nvim-notify.enable = true;
+    visuals = {
+      fidget-nvim.enable = true;
+      indent-blankline.enable = true;
+      rainbow-delimiters.enable = true;
+      nvim-web-devicons.enable = true;
+      tiny-devicons-auto-colors.enable = true;
+    };
+    ui = {
+      borders.enable = true;
+      breadcrumbs.enable = true;
+      breadcrumbs.navbuddy.enable = true;
+      colorizer.enable = true;
+      noice.enable = true;
+      nvim-ufo.enable = true;
+    };
+    utility = {
+      ccc.enable = true;
+      images.image-nvim = {
+        enable = true;
+        setupOpts.backend = "kitty";
+      };
+      yazi-nvim.enable = true;
+      yazi-nvim.setupOpts.open_for_directories = true; # FIXME: does this work with neotree?
+    };
+  };
+}