feat: add code folding

lua/plugins/lsp.lua

@@ -67,16 +67,16 @@ return {
 
 			lspconfig.ts_ls.setup({
 				capabilities = capabilities,
-        init_options = {
-          plugins = {
-            {
-              name = "@vue/typescript-plugin",
-              location = vue_language_server,
-              languages = { "vue" },
-            }
-          }
-        },
-        filetypes = { "typescript", "javascript", "javascriptreact", "typescriptreact", "vue" }
+				init_options = {
+					plugins = {
+						{
+							name = "@vue/typescript-plugin",
+							location = vue_language_server,
+							languages = { "vue" },
+						},
+					},
+				},
+				filetypes = { "typescript", "javascript", "javascriptreact", "typescriptreact", "vue" },
 			})
 
 			lspconfig.html.setup({
@@ -160,6 +160,20 @@ return {
 						)
 					end
 
+					vim.api.nvim_create_autocmd({ "FileType" }, {
+						callback = function()
+							-- check if treesitter has parser
+							if require("nvim-treesitter.parsers").has_parser() then
+								-- use treesitter folding
+								vim.opt.foldmethod = "expr"
+								vim.opt.foldexpr = "nvim_treesitter#foldexpr()"
+							else
+								-- use alternative foldmethod
+								vim.opt.foldmethod = "syntax"
+							end
+						end,
+					})
+
 					vim.keymap.set(
 						"n",
 						"<leader>ca",

lua/vim-options.lua

@@ -13,6 +13,7 @@ vim.g.mapleader = " "
 vim.g.maplocalleader = "\\"
 vim.opt.wrap = false
 vim.opt.shadafile = "NONE"
+vim.opt.foldlevelstart = 99
 
 vim.keymap.set("n", "<leader>y", '"+y', { desc = "Yank to system clipboard" })
 vim.keymap.set("v", "<leader>y", '"+y', { desc = "Yank to system clipboard" })