provide default configs

[teto]

for lsp / treesitter / telescope

should be possible to do nix run neovim-treesitter for instance.

now that we have neovide / uivonim etc. we could even compose targets with GUIs.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/how-could-i-create-a-neovim-flake-thats-bundled-with-an-applied-config/13448/2

[teto]

I stll think this would be a great way to showcase nix capabilites to the neovim community alas I dont have time to do this.