Add spacing around buttons on project page

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

app/views/projects/_home_panel.html.haml

@@ -29,6 +29,7 @@
             = link_to new_namespace_project_fork_path(@project.namespace, @project), title: "Fork project", class: 'btn' do
               = link_to_toggle_fork
       - elsif forked_from_project = @project.forked_from_project
+        .inline.prepend-left-10
           = link_to project_path(forked_from_project), class: 'btn' do
             = icon("code-fork fw")
             Forked from