[Chat] 支持矢量图标的Avatar

[jim-king-2000]

Which Component Need Enhancement 期望新增功能的组件

• Chat

Feature Description 功能描述

目前的头像只支持图片url：

const roleConfig = {
  user: {
    name: 'User',
    avatar:
      'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/docs-icon.png',
  },
  assistant: {
    name: 'Assistant',
    avatar:
      'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/other/logo.png',
  },
  system: {
    name: 'System',
    avatar:
      'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/other/logo.png',
  },
}

现在希望能支持react矢量图标

import {BellFill} from '@gravity-ui/icons';

const roleConfig = {
  user: {
    name: 'User',
    avatar: <BellFill />,
  },
  assistant: {
    name: 'Assistant',
    avatar:
      'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/other/logo.png',
  },
  system: {
    name: 'System',
    avatar:
      'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/other/logo.png',
  },
}