message: merge .mx_ReplyThread declaration in _IRCLayout.css
diff: @@ -136,27 +136,6 @@ $irc-line-height: $font-18px;
  }
  }
  - .mx_ReplyThread {
  - .mx_EventTile_emote {
  - > .mx_EventTile_avatar {
  - margin-left: initial;
  - }
  - }
  -
  - .mx_MessageTimestamp {
  - width: initial;
  - }
  -
  - /**
  - * adding the icon back in the document flow
  - * if it's not present, there's no unwanted wasted space
  - */
  - .mx_EventTile_e2eIcon {
  - position: relative;
  - order: -1;
  - }
  - }
  -
  blockquote {
  margin: 0;
  }
  @@ -237,6 +216,25 @@ $irc-line-height: $font-18px;
  }
  }
  }
  +
  + .mx_EventTile_emote {
  + > .mx_EventTile_avatar {
  + margin-left: initial;
  + }
  + }
  +
  + .mx_MessageTimestamp {
  + width: initial;
  + }
  +
  + /**
  + * adding the icon back in the document flow
  + * if it's not present, there's no unwanted wasted space
  + */
  + .mx_EventTile_e2eIcon {
  + position: relative;
  + order: -1;
  + }
  }
  .mx_ProfileResizer {
  