fix: availability page UI (#27825)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

packages/platform/atoms/availability/AvailabilitySettings.tsx

@@ -405,6 +405,8 @@ export const AvailabilitySettings = forwardRef<AvailabilitySettingsFormRef, Avai
     return (
       <Shell
         headerClassName={cn(customClassNames?.containerClassName)}
+        disableSticky
+        topAlignedHeading
         backPath={backPath}
         title={schedule.name ? `${schedule.name} | ${t("availability")}` : t("availability")}
         heading={