Ensure second line of message body is never visible in LeftPane

stylesheets/_modules.scss

@@ -2933,7 +2933,6 @@ $timer-icons: '55', '50', '45', '40', '35', '30', '25', '20', '15', '10', '05',
 
   @include font-body-2;
 
-  height: 1.4em;
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;

ts/components/ConversationListItem.tsx

@@ -181,7 +181,7 @@ export class ConversationListItem extends React.PureComponent<Props> {
                 </span>
               ) : null}
               <MessageBody
-                text={text}
+                text={text.split('\n')[0]}
                 disableJumbomoji={true}
                 disableLinks={true}
                 i18n={i18n}