chore: enhance ListWrapper and PluginPage components with stable scro… (#16048)

web/app/components/plugins/plugin-page/index.tsx

@@ -145,6 +145,7 @@ const PluginPage = ({
     <div
       id='marketplace-container'
       ref={containerRef}
+      style={{ scrollbarGutter: 'stable' }}
       className={cn('grow relative flex flex-col overflow-y-auto border-t border-divider-subtle', activeTab === 'plugins'
         ? 'rounded-t-xl bg-components-panel-bg'
         : 'bg-background-body',