Update cluster_backend.py

Hui Wang

2024-04-09 eef1c2a5b885ebc045373a98cb5d3f66019c65b7

 runtime/android/AndroidClient/app/src/main/res/layout/dialog_input_hotwords.xml

@@ -13,6 +13,6 @@
        android:background="@drawable/edittext_border"
        android:minLines="3"
        android:gravity="top"
        android:hint="每个热词用空格隔开" />
        android:hint="每一行为:热词 权重" />

</LinearLayout>