message: core-components: add className prop for LogViewer
diff: @@ -29,6 +29,7 @@ import { useLogViewerSelection } from './useLogViewerSelection';
  export interface LogViewerProps {
  text: string;
  + className?: string;
  }
  export function LogViewer(props: LogViewerProps) {
  @@ -59,7 +60,10 @@ export function LogViewer(props: LogViewerProps) {
  return (
  <AutoSizer>
  {({ height, width }) => (
  - <div style={{ width, height }} className={classes.root}>
  + <div
  + style={{ width, height }}
  + className={clsx(classes.root, props.className)}
  + >
  <div className={classes.header}>
  <LogViewerControls {...search} />
  </div>
  