lvim separate package path

lua/plugins.lua

@@ -14,6 +14,7 @@ if not packer_ok then
 end
 
 packer.init {
+  package_root = require("packer.util").join_paths(vim.fn.stdpath "data", "lvim", "pack"),
   git = { clone_timeout = 300 },
   display = {
     open_fn = function()