Fix last push widget

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/generic/blocks.scss

@@ -36,6 +36,11 @@
     margin-bottom: 0;
   }
 
+  &.clear-block {
+    margin-bottom: $gl-padding - 1px;
+    padding-bottom: $gl-padding;
+  }
+
   &.second-block {
     margin-top: -1px;
     margin-bottom: 0;

app/views/events/_event_last_push.html.haml

 - if show_last_push_widget?(event)
+  .gray-content-block.clear-block
     .event-last-push
       .event-last-push-text
         %span You pushed to
@@ -11,4 +12,3 @@
       .pull-right
         = link_to new_mr_path_from_push_event(event), title: "New Merge Request", class: "btn btn-info btn-sm" do
           Create Merge Request
-  %hr

app/views/projects/_last_push.html.haml

 - if event = last_push_event
   - if show_last_push_widget?(event)
-    .hidden-xs.center
-      .slead
+
+    .gray-content-block.top-block.clear-block.hidden-xs
+      .event-last-push
+        .event-last-push-text
           %span You pushed to
           = link_to namespace_project_commits_path(event.project.namespace, event.project, event.ref_name) do
             %strong= event.ref_name
           branch
           #{time_ago_with_tooltip(event.created_at)}
 
-      %div
+        .pull-right
           = link_to new_mr_path_from_push_event(event), title: "New Merge Request", class: "btn btn-info btn-sm" do
             Create Merge Request
-      %hr