redid mapping, set and util, also readded nvim-cmp and cmp-nvim-lsp

lua/plugins/lsp.lua

@@ -1,3 +1,5 @@
 return {
 	{ "nvim-treesitter/nvim-treesitter", build = ":TSUpdate" },
+	{ "hrsh7th/nvim-cmp" },
+	{ "hrsh7th/cmp-nvim-lsp" }
 }

lua/plugins/util.lua

@@ -0,0 +1,14 @@
+return {
+	{
+		"mbbill/undotree",
+		config = function()
+			vim.keymap.set("n", "<leader>u", vim.cmd.UndotreeToggle)
+		end,
+  	},
+	{
+		"tpope/vim-fugitive",
+		config = function()
+			vim.keymap.set("n", "<leader>gs", vim.cmd.Git)
+		end,
+	},
+}