fix: LSDV-5131: Fix broken styles for controls (#1386)

`mod` is used inside Button and overrides everything if set directly.
So for new UI this way is ok for now, but old code should not have it at all.

Author: hlomzik

src/components/SidePanels/OutlinerPanel/ViewControls.tsx

@@ -189,10 +189,12 @@ const Grouping = <T extends string>({
     );
   }, [value, optionsList, readableValue, direction]);
 
+  // mods are already set in the button from type, so use it only in new UI
+  const extraStyles = isFF(FF_DEV_3873) ? { mod: { newUI: true } } : undefined;
 
   return (
     <Dropdown.Trigger content={dropdownContent} style={{ width: 200 }}>
-      <Button type="text" mod={{ newUI: isFF(FF_DEV_3873) }} icon={readableValue.icon} style={{
+      <Button type="text" {...extraStyles} icon={readableValue.icon} style={{
         padding: isFF(FF_DEV_3873) ? '0 6px 0 2px': 0,
         whiteSpace: 'nowrap',
       }} extra={(