fix: empty session page

components/aigc/chat/NewSessionScreen.vue

@@ -4,7 +4,12 @@ import {useLazyAsyncData} from '#app'
 
 const loginState = useLoginState()
 
-const props = defineProps()
+const props = defineProps({
+  nonBack: {
+    type: Boolean,
+    default: false,
+  },
+})
 const emit = defineEmits({
   select: (assistant: Assistant | null) => true,
   cancel: () => true,
@@ -58,6 +63,7 @@ const {
     </Transition>
     <div class="w-full p-2">
       <UButton
+          v-if="!nonBack"
           variant="ghost"
           size="xs"
           @click="emit('cancel')"