NLCST Emoji Modifier

The `nlcst-emoji-modifier` package is an NLCST utility designed to classify both standard Unicode emoji (e.g., 👍) and GitHub-style gemoji shortcodes (e.g., `:cat:`) within natural language text by transforming them into `EmoticonNode`s in the syntax tree. The current stable version is 6.0.2. This project, part of the `unified` collective, releases new major versions aligned with Node.js LTS support, dependency updates, and shifts to modern JavaScript module practices, ensuring ongoing compatibility and performance. It functions as a foundational component for advanced linguistic analysis, often used implicitly by higher-level plugins like `retext-emoji`. Its key differentiator lies in its specific integration within the NLCST ecosystem for detailed emoji and emoticon processing.