added cohort group editing styles

cms/static/sass/views/_group-configuration.scss

@@ -27,7 +27,7 @@
       margin-bottom: ($baseline*1.5);
 
       .title {
-        @extend %t-title5;
+        @extend %t-title4;
         @extend %t-strong;
       }
 
@@ -49,14 +49,16 @@
           .group-configuration-header {
             margin-bottom: 0;
             border-bottom: 0;
+            padding-bottom: 0;
           }
 
           .group-configuration-title {
-            @extend %t-title4;
+            @extend %t-title5;
             @extend %t-strong;
             overflow: hidden;
             text-overflow: ellipsis;
             margin-right: ($baseline*14);
+            color: $black;
 
             .group-toggle {
               display: inline-block;

cms/templates/js/content-group-details.underscore

 <div class="wrapper-group-configuration">
     <header class="group-configuration-header">
         <h3 class="group-configuration-title">
-            <%= name %>
+            <%- name %>
         </h3>
     </header>