'$enable_dislike' => ['enable_dislike' , $this->t('Display the Dislike feature'), $enable_dislike, $this->t('Display the Dislike button and dislike reactions on posts and comments.')],
'$display_resharer' => ['display_resharer' , $this->t('Display the resharer'), $display_resharer, $this->t('Display the first resharer as icon and text on a reshared item.')],
'$stay_local' => ['stay_local' , $this->t('Stay local'), $stay_local, $this->t("Don't go to a remote system when following a contact link.")],
- '$preview_mode' => ['preview_mode' , $this->t('Link preview mode'), $preview_mode, 'Appearance of the link preview that is added to each post with a link.', $preview_modes, false],
+ '$preview_mode' => ['preview_mode' , $this->t('Link preview mode'), $preview_mode, $this->t('Appearance of the link preview that is added to each post with a link.'), $preview_modes, false],
'$first_day_of_week' => ['first_day_of_week' , $this->t('Beginning of week:') , $first_day_of_week , '', $weekdays , false],
'$calendar_default_view' => ['calendar_default_view', $this->t('Default calendar view:'), $calendar_default_view, '', $calendarViews, false],