Fix CssSyntaxError

✅ Solution

CssSyntaxError in NX often arises from using incorrect or unsupported CSS syntax within your project's stylesheets, especially when using features like `postcss-cli-resources` for asset handling. To resolve this, carefully review your CSS files (including those in libraries) and ensure all syntax is valid and supported by your configured PostCSS plugins; usually, updating or configuring PostCSS plugins like `postcss-url` to correctly resolve asset paths (e.g., URLs in `url()` functions) will fix the problem.