fix(core): update

ts/domtools.css.theme.ts

@@ -3,7 +3,8 @@ import { DomTools } from './domtools.classes.domtools';
 /**
  * changes scrollbar styles to be consistent across OS borders
  */
-export const scrollBarStyles = `
+export const scrollBarStyles = (() => {
+  const returnStyles = navigator.userAgent.indexOf("Windows") !== -1 ? `
   /* width */
   ::-webkit-scrollbar {
     width: 8px;
@@ -23,7 +24,8 @@ export const scrollBarStyles = `
   ::-webkit-scrollbar-thumb:hover {
     background: #777; 
   }
-`;
+` : ``;
+})();
 
 export const setupGlobalTheme = (domToolsInstance: DomTools) => {
   const styles = `