JS Grammar Updates

 - Fix bug in hex-color that uses invalid token
 - Generate runtime manifest file to avoid dynamic imports

Author: amiller-gh

css-property-parser.d.ts

@@ -50,7 +50,7 @@ declare namespace CssPropertyParser {
   */
   function getShorthandComputedProperties(
     shorthandProperty: string,
-    recursivelyResolve: boolean
+    recursivelyResolve?: boolean
   ): Array<string>;
 
   /**