fix(ui): revert offset scrollbars

The wonky padding is too janky. Just overlay for now.

invokeai/frontend/web/src/common/components/IAIScrollArea.tsx

@@ -3,9 +3,9 @@ import { ScrollArea, ScrollAreaProps } from '@mantine/core';
 type IAIScrollArea = ScrollAreaProps;
 
 export default function IAIScrollArea(props: IAIScrollArea) {
-  const { offsetScrollbars = true, ...rest } = props;
+  const { ...rest } = props;
   return (
-    <ScrollArea w="100%" offsetScrollbars={offsetScrollbars} {...rest}>
+    <ScrollArea w="100%" {...rest}>
       {props.children}
     </ScrollArea>
   );