Merge branch 'new-mr-avatar-alignment' into 'master'

Fixed avatar alignment in new MR view

## What does this MR do?

Fixes the alignment of the avatar in new MR view.
Closes #19076 

## Screenshots (if relevant)

![Screen_Shot_2016-06-24_at_12.53.58](/uploads/fc94faf2e48f194852693b7ae79e8fa3/Screen_Shot_2016-06-24_at_12.53.58.png)

See merge request !4901

app/assets/stylesheets/pages/merge_requests.scss

@@ -264,8 +264,15 @@
       margin-bottom: 4px;
     }
 
+    .item-title {
+      @media (min-width: $screen-sm-min) {
+        width: 49%;
+      }
+    }
+
     .avatar {
-      margin-left: 0;
+      left: 0;
+      top: 2px;
     }
 
     .commit-row-info {