feat: 更新 formkit 配置，添加 group 类型支持并优化组件结构

src/all-custom/all-custom.vue

@@ -77,13 +77,35 @@ async function submit(formData: Record<string, any>, formNode: FormKitNode) {
         </template> -->
       </FormKit>
 
-      <!-- <FormKit
-        v-if="false"
-        type="text"
-        label="默认text"
-        validation="required"
+      <Button
+        label="Button"
+        @click="() => {
+          value!.button = value!.button || {};
+          (value!.button as any).clicked = 'clicked';
+        }"
+      />
+
+      <FormKit
+        type="group"
+        name="group"
       >
-      </FormKit> -->
+        <FormKit
+          type="text"
+          name="text-in-group-1"
+        >
+        </FormKit>
+      </FormKit>
+
+      <FormKit
+        type="group"
+        name="group"
+      >
+        <FormKit
+          type="text"
+          name="text-in-group-2"
+        >
+        </FormKit>
+      </FormKit>
 
       <pre class="font-mono text-sm p-4 bg-slate-100 dark:bg-gray-900 overflow-x-auto rounded-md shadow-inner dark:text-gray-300
       ">{{ value }}</pre>
@@ -92,3 +114,9 @@ async function submit(formData: Record<string, any>, formNode: FormKitNode) {
   </Fieldset>
 
 </template>
+
+<style scoped>
+:deep(.formkit-input) {
+  border: 1px solid #e2e8f0;
+}
+</style>