message: Fix dark mode lamp
diff: import NextLink from 'next/link'
  -import { Button, Icon, Link, TextInput, Theme, Tooltip, useStyles } from '../../lib'
  +import { Button, Icon, lightTheme, Link, TextInput, Theme, Tooltip, useStyles } from '../../lib'
  import { BoldLogo } from './BoldLogo'
  import { SIDE_NAV_WIDTH } from './SideNav'
  -import { lightTheme } from './useThemeSwitch'
  export interface AppHeaderProps {
  currentTheme: Theme
  