Add CSS build script and fscss dependency

Added build script for CSS and fscss as a dev dependency.

Author: Figsh

package.json

@@ -26,5 +26,13 @@
     "url": "https://github.com/sponsors/Figsh"
   },
   "engines": { "node": ">=14.0.0" },
-  "browserslist": ["defaults", "not ie 11", "maintained node versions"]
+  "browserslist": ["defaults", "not ie 11", "maintained node versions"], 
+  Add these to your existing package.json:
+
+"scripts": {
+  "build:css": "fscss fscss/main.fscss style.css"
+},
+"devDependencies": {
+  "fscss": "^1.2.6"
+}
 }