- remove vim from the nix packages because for adding plugins to neovim - need use nvim command, not vim

* install nixpkgs in multi user mode
- remove configure tmux plugin, because plugins does not exists on yadm bootstrap stage - that automatically configured via tmux started in tmux.conf

.config/nix/installed_packages

@@ -23,7 +23,6 @@ nixpkgs.starship
 nixpkgs.tmate
 nixpkgs.tmux
 nixpkgs.unzip
-nixpkgs.vim
 nixpkgs.wget
 nixpkgs.yadm
 nixpkgs.zplug