Added tooltip to assignee

app/views/projects/boards/components/_card.html.haml

@@ -8,5 +8,5 @@
         {{ issue.id }}
     %span.label.color-label{ "v-for" => "label in issue.labels", ":style" => "{ backgroundColor: label.color, color: label.textColor }" }
       {{ label.title }}
-    %a{ ":href" => "'/u/' + issue.assignee.username", ":title" => "issue.assignee.name", "v-if" => "issue.assignee" }
+    %a.has-tooltip{ ":href" => "'/u/' + issue.assignee.username", ":title" => "'Assigned to ' + issue.assignee.name", "v-if" => "issue.assignee" }
       %img.avatar.avatar-inline.s20{ ":src" => "issue.assignee.avatar", width: 20, height: 20 }