feat(extras): added extra for neogen. Closes #2881

lua/lazyvim/plugins/extras/coding/neogen.lua

@@ -0,0 +1,35 @@
+return {
+  "danymat/neogen",
+  cmd = "Neogen",
+  keys = {
+    {
+      "<leader>cn",
+      function()
+        require("neogen").generate()
+      end,
+      desc = "Generate Annotations (Neogen)",
+    },
+  },
+  opts = function(_, opts)
+    if opts.snippet_engine ~= nil then
+      return
+    end
+
+    local map = {
+      ["LuaSnip"] = "luasnip",
+      ["nvim-snippy"] = "snippy",
+      ["vim-vsnip"] = "vsnip",
+    }
+
+    for plugin, engine in pairs(map) do
+      if LazyVim.has(plugin) then
+        opts.snippet_engine = engine
+        return
+      end
+    end
+
+    if vim.snippet then
+      opts.snippet_engine = "nvim"
+    end
+  end,
+}