Fix UI issue on project page with no ssh key message

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

app/views/layouts/_page.html.haml

@@ -23,6 +23,7 @@
           = current_user.username
   .content-wrapper
     = render "layouts/flash"
+    = yield :flash_message
     %div{ class: container_class }
       .content
         .clearfix

app/views/projects/show.html.haml

@@ -2,7 +2,8 @@
   - if current_user
     = auto_discovery_link_tag(:atom, namespace_project_path(@project.namespace, @project, format: :atom, private_token: current_user.private_token), title: "#{@project.name} activity")
 
-- if current_user && can?(current_user, :download_code, @project)
+= content_for :flash_message do
+  - if current_user && can?(current_user, :download_code, @project)
     = render 'shared/no_ssh'
     = render 'shared/no_password'