- Added `set clipboard=unnamedplus` to Vim configuration in `default.nix`.
- Enables seamless clipboard access between Vim and the system for improved usability.
- Enabled Vim in `default.nix` and added custom configuration under `programs.vim`.
- Includes settings for indentation, syntax highlighting, secure mode, and automatic cursor position restoration.
- Improves default usability and aligns with user preferences for Vim.
