add lazydev for lua completion

lua/plugins/lsp.lua

@@ -23,6 +23,15 @@ return {
       })
     end
   },
+  {
+    "folke/lazydev.nvim",
+    ft = "lua",
+    opts = {
+      library = {
+        { path = "${3rd}/luv/library", words = { "vim%.uv" } },
+      },
+    },
+  },
   { "nvim-treesitter/nvim-treesitter", build = ":TSUpdate" },
   { "mfussenegger/nvim-jdtls" } -- jdtls bindings for neovim
 }