修改提示语

src/App.vue

@@ -688,7 +688,7 @@ onBeforeUnmount(() => {
           <textarea
             v-model="text"
             rows="2"
-            placeholder="给 nanobot 发送消息"
+            placeholder="请发送消息"
             @keydown.enter.exact.prevent="sendMessage"
           />
           <button :disabled="!canSend" @click="sendMessage">发送</button>