style(MessageRecord): 调整消息记录图标样式以改善对齐

移除verticalAlign属性并添加lineHeight和float属性，使图标在消息记录中更准确地对齐

Cunkebao/src/pages/pc/ckbox/weChat/components/ChatWindow/components/MessageRecord/index.tsx

@@ -78,9 +78,10 @@ const MessageRecord: React.FC<MessageRecordProps> = ({ contract }) => {
             style={{
               width: "20px",
               height: "20px",
-              verticalAlign: "middle",
               margin: "0 2px",
               display: "inline",
+              lineHeight: "20px",
+              float: "left",
             }}
           />,
         );