Add Neovim Plugin

Add the neovim plugin: $ARGUMENTS

Reference Documentation

Follow the patterns documented in @docs/neovim-plugins.md

Steps

1. Find the plugin: Search nixpkgs for the plugin using nix search nixpkgs vimPlugins.<name>. If not found, check vimExtraPlugins.

   • IMPORTANT: vimExtraPlugins uses the naming convention <plugin-name>-<owner> (e.g., trouble-nvim-folke, conform-nvim-stevearc).
   • Find the exact name in plugins.md.

2. Fetch plugin info: If a GitHub URL is provided, fetch it to understand dependencies and configuration options.