Reduce the shadow size for safari

Author: CompuIves

standalone-packages/sse-loading-screen/src/Cube.js

@@ -6,7 +6,7 @@ import styled, { keyframes } from 'preact-emotion';
 const isSafari =
   typeof navigator !== 'undefined' &&
   /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
-const SHADOW_SIZE = isSafari ? 100 : 150;
+const SHADOW_SIZE = isSafari ? 50 : 150;
 
 const getContainerAnimation = (offset: number) => {
   return keyframes`