Add scrollbar to trix-editor

Author: Dineshs91

app/css/index.css

@@ -61,7 +61,9 @@ span.title {
   padding: 1.2rem 0 0 2rem;
 }
 .log.content {
-  height: 23em;
+  overflow-y: scroll;
+  min-height: 23em;
+  max-height: 25em;
 }
 .save-status {
   height: 1em;

app/css/index.less

@@ -87,7 +87,9 @@ span.title {
 }
 
 .log.content {
-    height: 23em;
+    overflow-y: scroll;
+    min-height: 23em;
+    max-height: 25em;
 }
 
 .save-status {