fix: splitting of copilot_node_command (#545)

Author: jacobrreed

lua/copilot/lsp/nodejs.lua

@@ -95,7 +95,7 @@ end
 
 ---@return table
 function M.get_execute_command()
-  local cmd = vim.split(M.node_command, " ")
+  local cmd = { M.node_command }
   table.insert(cmd, M.server_path or M.get_server_path())
   table.insert(cmd, "--stdio")
   return cmd