ui: fix dialog scroll bar

Author: undefined-moe

packages/ui-default/components/dialog/dialog.page.styl

@@ -22,9 +22,7 @@
   box-shadow: $dialog-shadow
   min-width: rem(500px)
   max-width: rem(900px)
-  max-height: 90vh
   padding: rem(40px) rem(30px)
-  overflow-y: auto
 
 .dialog__body
   margin-bottom: rem(20px)