NVIM: Improved structure and improved lazy loading

.config/nvim/lua/plugins/render-markdown.lua

@@ -5,6 +5,10 @@ return {
     "nvim-treesitter/nvim-treesitter",
     "nvim-tree/nvim-web-devicons",
   },
+  ft = { "markdown" },
+  cond = function()
+    return vim.fn.expand("%:e") ~= "ipynb"
+  end,
   ---@module 'render-markdown'
   ---@type render.md.UserConfig
   opts = {