fix: fix problem which ai assistant will be transparent in popover in light mode

Author: moonrailgun

client/web/src/components/ChatBox/ChatInputBox/Emotion.less

@@ -1,6 +1,7 @@
 .chat-message-input_action-popover {
-  .ant-popover-inner {
+  > .ant-popover-content > .ant-popover-inner {
     background-color: transparent;
+    border-radius: 10px;
 
     .ant-popover-inner-content {
       padding: 0;