Better scope page specific javascript for widget.

app/views/projects/merge_requests/_show.html.haml

@@ -4,7 +4,6 @@
 - content_for :page_specific_javascripts do
   = page_specific_javascript_tag('lib/vue_resource.js')
   = page_specific_javascript_tag('diff_notes/diff_notes_bundle.js')
-  = page_specific_javascript_tag('merge_request_widget/widget_bundle.js')
 
 .merge-request{'data-url' => merge_request_path(@merge_request)}
   = render "projects/merge_requests/show/mr_title"

app/views/projects/merge_requests/widget/_open.html.haml

 - approvers_names = @merge_request.approvers_left.map(&:name).to_json
 - more_approvals = @merge_request.approvals_left - @merge_request.approvers_left.count
 - approvals_left = @merge_request.approvals_left
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('merge_request_widget/widget_bundle.js')
 
 #merge-request-widget-app.mr-state-widget{'data-approved-by-users' => @merge_request.approved_by_users.to_json, 'data-approver-names' => approvers_names,'data-approvals-left' => approvals_left, 'data-more-approvals' => more_approvals, 'data-endpoint'=> '/myendpoint/tho'}
   = render 'projects/merge_requests/widget/heading'