chore(radiogroup): modify class name

src/packages/__VUE/radiogroup/__tests__/radiogroup.spec.ts

@@ -93,8 +93,8 @@ test('radiogroup direction test', () => {
     }
   });
 
-  const items = wrapper.findAll('.nut-radiogroup');
-  expect((items[0] as any).find('.nut-radiogroup--horizontal')).toBeTruthy();
+  const items = wrapper.findAll('.nut-radio-group');
+  expect((items[0] as any).find('.nut-radio-group--horizontal')).toBeTruthy();
 });
 
 test('radio disabled test', async () => {

src/packages/__VUE/radiogroup/index.scss

@@ -1,4 +1,4 @@
-.nut-radiogroup {
+.nut-radio-group {
   display: inline-block;
   .nut-radio {
     margin-bottom: 5px;

src/packages/__VUE/radiogroup/index.vue

@@ -37,7 +37,7 @@ export default create({
       return h(
         'view',
         {
-          class: `nut-radiogroup nut-radiogroup--${props.direction}`
+          class: `${componentName} ${componentName}--${props.direction}`
         },
         slots.default?.()
       );