Center align icon with the text in the reply dialog

Change-Id: I93f451a6c6e45ebf8f80ce06037b3caf4558cfc4
diff --git a/ui/suggest-owners.js b/ui/suggest-owners.js
index bcfb2ef..b913cb0 100644
--- a/ui/suggest-owners.js
+++ b/ui/suggest-owners.js
@@ -135,6 +135,9 @@
         }
         .suggestion-row-indicator[visible] iron-icon {
           color: var(--link-color);
+          vertical-align: top;
+          position: relative;
+          top: 3px; /* (26-20)/2 - 26px line-height and 20px icon */ 
         }
         .suggestion-group-name {
           width: 200px;