Autocomplete Menu Feature

Added a A beautiful, responsive autocomplete menu.without an autocomplete plugin, it has no way to actually show those suggestions while typing.

This feature configures nvim-cmp, which is the autocomplete engine for your Neovim setup

So I added Autocomplete menu feature, which -

• popup menu appears when you start typing code
• It decides what to show you (functions, variables, file paths, snippets)
• Gives auto code snippet