feat(options): enabled treesitter folding and foldtext when available

lua/lazyvim/config/options.lua

@@ -51,5 +51,17 @@ if vim.fn.has("nvim-0.10") == 1 then
   opt.smoothscroll = true
 end
 
+-- Folding
+vim.opt.foldlevel = 99
+if vim.treesitter.foldexpr then
+  vim.opt.foldmethod = "expr"
+  vim.opt.foldexpr = "v:lua.vim.treesitter.foldexpr()"
+else
+  vim.opt.foldmethod = "indent"
+end
+if vim.treesitter.foldtext then
+  vim.opt.foldtext = "v:lua.vim.treesitter.foldtext()"
+end
+
 -- Fix markdown indentation settings
 vim.g.markdown_recommended_style = 0