SelectPanel: Enable modern ActionList FF by default in Storybook

packages/react/.storybook/preview.jsx

@@ -303,7 +303,7 @@ export const decorators = [
           <div {...wrapperProps}>
             <BaseStyles>
               {showSurroundingElements ? <a href="https://github.com/primer/react">Primer documentation</a> : ''}
-              <FeatureFlags flags={{primer_react_action_list_item_as_button: true}}>
+              <FeatureFlags flags={{primer_react_select_panel_with_modern_action_list: true}}>
                 <Story {...context} />
               </FeatureFlags>
               {showSurroundingElements ? <a href="https://github.com/primer/react">Primer documentation</a> : ''}

packages/react/src/SelectPanel/SelectPanel.tsx

@@ -177,7 +177,7 @@ export function SelectPanel({
   const [needsNoItemsAnnouncement, setNeedsNoItemsAnnouncement] = useState<boolean>(false)
   const isNarrowScreenSize = useResponsiveValue({narrow: true, regular: false, wide: false}, false)
 
-  const usingModernActionList = useFeatureFlag('primer_react_select_panel_modern_action_list')
+  const usingModernActionList = useFeatureFlag('primer_react_select_panel_with_modern_action_list')
   const usingFullScreenOnNarrow = useFeatureFlag('primer_react_select_panel_fullscreen_on_narrow')
 
   // Single select modals work differently, they have an intermediate state where the user has selected an item but