message: fix width of popover
diff: @@ -67,13 +67,8 @@ type PeekAheadPopoverProps = {
  const useStyles = makeStyles(() => {
  return {
  - popover: {
  - width: '80em',
  - minWidth: '80em',
  - maxWidth: '80em',
  - },
  - card: {
  - width: '100%',
  + popoverPaper: {
  + width: '20em',
  },
  };
  });
  @@ -99,8 +94,10 @@ export const PeekAheadPopover = ({
  return (
  <HoverPopover
  + PaperProps={{
  + className: classes.popoverPaper,
  + }}
  {...bindPopover(popupState)}
  - className={classes.popover}
  anchorOrigin={{
  vertical: 'bottom',
  horizontal: 'center',
  @@ -110,7 +107,7 @@ export const PeekAheadPopover = ({
  horizontal: 'center',
  }}
  >
  - <Card className={classes.card}>
  + <Card>
  <CardContent>
  <Typography gutterBottom>{entityRef.namespace}</Typography>
  <Typography variant="h5" component="div">
  