nvim: split plugins into multiple files

.config/nvim/lua/plugins/nvim-ufo.lua

@@ -0,0 +1,20 @@
+return {
+  -- folding improvements
+  {
+    'kevinhwang91/nvim-ufo',
+    dependencies = { 'kevinhwang91/promise-async' },
+    config = function()
+      require('ufo').setup()
+      vim.api.nvim_create_autocmd({ 'BufEnter', 'FileType' },
+        {
+          pattern = { '*' },
+          callback = function() require("ufo").closeAllFolds() end
+        })
+      vim.api.nvim_create_autocmd({ 'BufEnter', 'FileType' },
+        {
+          pattern = { '*' },
+          callback = function() require("ufo").openAllFolds() end
+        })
+    end
+  }
+}