fix(theme): fix dark style color (#1819)

cipchk · web-flow · commit 6389ec1aa3ed · 2024-08-02T22:05:14.000+08:00
diff --git a/packages/theme/system/theme-dark.less b/packages/theme/system/theme-dark.less
@@ -8,3 +8,5 @@
 
 @sf-optional-color: darken(@text-color, 50%);
 @sf-widget-array-type-card-remove-bg: rgba(0, 0, 0, 0.66);
+
+@scrollbar-track-color: fade(@white, 30%);
