Apply padding and font-weight changes.

services/web/public/stylesheets/app/editor/chat.less

@@ -73,9 +73,10 @@
 					position: relative;
 					
 					.message-content {
-						padding: @line-height-computed / 2;
+						padding: @chat-message-padding;
 						overflow-x: auto;
 						color: @chat-message-color;
+						font-weight: @chat-message-weight;
 					}
 
 					.arrow {