Feat: Modify the default style of the agent node anchor #9869 (#10489)

### What problem does this PR solve?

Feat: Modify the default style of the agent node anchor #9869

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/canvas/node/node-wrapper.tsx

@@ -7,7 +7,7 @@ export function NodeWrapper({ children, className, selected }: IProps) {
   return (
     <section
       className={cn(
-        'bg-text-title-invert p-2.5 rounded-sm w-[200px] text-xs',
+        'bg-text-title-invert p-2.5 rounded-sm w-[200px] text-xs group',
         { 'border border-accent-primary': selected },
         className,
       )}