fix: Added description attribute (#226)

* Added description attribute to image element and removed formatting,
  as formatting for title and description can be applied in the Assistant workspace

public/css/app.css

@@ -461,7 +461,3 @@ html{
   cursor: pointer;
   display: inline-block;
 }
-
-.description-area {
-  font-style: italic;
-}

public/js/conversation.js

@@ -234,18 +234,18 @@ var ConversationPanel = (function () {
   }
 
   function getResponse(responses, gen) {
-    var title = '';
+    var title = '', description = '';
     if (gen.hasOwnProperty('title')) {
       title = gen.title;
     }
     if (gen.hasOwnProperty('description')) {
-      var description = '<div class="description-area">' + gen.description + '</div>';
+      description = '<div>' + gen.description + '</div>';
     }
     if (gen.response_type === 'image') {
       var img = '<div><img src="' + gen.source + '" width="300"></div>';
       responses.push({
         type: gen.response_type,
-        innerhtml: title + img
+        innerhtml: title + description + img
       });
     } else if (gen.response_type === 'text') {
       responses.push({