message: Reduce gutter with the new read receipt UI
diff: @@ -419,12 +419,12 @@ $threadInfoLineHeight: calc(2 * $font-12px); // See: _commons.scss
  .mx_ThreadSummaryIcon,
  .mx_EventTile_line {
  /* ideally should be 100px, but 95px gives us a max thumbnail size of 800x600, which is nice */
  - margin-right: 110px;
  + margin-right: 80px;
  min-height: $font-14px;
  }
  .mx_ThreadSummary {
  - max-width: min(calc(100% - $left-gutter - 110px), 600px); // leave space on both left & right gutters
  + max-width: min(calc(100% - $left-gutter - 80px), 600px); // leave space on both left & right gutters
  }
  }
  