feat: nixvim refactor

modules/home-manager/programs/nixvim/presets/trouble.nix

@@ -0,0 +1,58 @@
+{ lib, config, ... }:
+let
+  cfg = config.presets.trouble;
+in
+{
+  options.presets.trouble = {
+    enable = lib.mkEnableOption "trouble";
+  };
+
+  config = lib.mkIf cfg.enable {
+    keymaps = [
+      {
+        key = "<leader>xx";
+        mode = "n";
+        lua = true;
+        action = "require('trouble').toggle";
+      }
+      {
+        key = "<leader>xw";
+        mode = "n";
+        lua = true;
+        action = "function() require('trouble').toggle('workspace_diagnostics') end";
+      }
+      {
+        key = "<leader>xd";
+        mode = "n";
+        lua = true;
+        action = "function() require('trouble').toggle('document_diagnostics') end";
+      }
+      {
+        key = "<leader>xq";
+        mode = "n";
+        lua = true;
+        action = "function() require('trouble').toggle('quickfix') end";
+      }
+      {
+        key = "<leader>xl";
+        mode = "n";
+        lua = true;
+        action = "function() require('trouble').toggle('loclist') end";
+      }
+    ];
+    plugins = {
+      trouble = {
+        enable = true;
+        settings.use_diagnostic_signs = true;
+      };
+      which-key.registrations."<leader>x" = {
+        name = "Trouble";
+        x = "Toggle";
+        w = "Workspace Diagnostics";
+        d = "Document Diagnostics";
+        q = "Quickfix";
+        l = "Loclist";
+      };
+    };
+  };
+}