style: remove padding for message action popover inner content

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

@@ -0,0 +1,5 @@
+.chat-message-input_action-popover {
+  > .ant-popover-content > .ant-popover-inner > .ant-popover-inner-content {
+    padding: 0;
+  }
+}

client/web/src/components/ChatBox/ChatInputBox/BaseChatInputButton.tsx

@@ -2,6 +2,7 @@ import { Popover } from 'antd';
 import clsx from 'clsx';
 import React, { useState } from 'react';
 import { Icon } from 'tailchat-design';
+import './BaseChatInputButton.less';
 
 interface BaseChatInputButtonProps {
   overlayClassName?: string;