Merge branch 'group-icon-alignment' into 'master'

Align visibility icons on group page

## What does this MR do?
Aligns visibility icons on group page

## Why was this MR needed?
Because the icons looked like this:   
![Screen_Shot_2016-07-25_at_3.03.31_PM](/uploads/94205a609f803a36a7ba678332564c48/Screen_Shot_2016-07-25_at_3.03.31_PM.png)

Now it looks like this:   
![Screen_Shot_2016-07-25_at_3.06.29_PM](/uploads/efbf40105d91d05c8cf81761aa27c618/Screen_Shot_2016-07-25_at_3.06.29_PM.png)


See merge request !5482

app/views/shared/projects/_project.html.haml

@@ -24,7 +24,7 @@
           = icon('star')
           = project.star_count
       %span.visibility-icon.has-tooltip{data: { container: 'body', placement: 'left' }, title: visibility_icon_description(project)}
-        = visibility_level_icon(project.visibility_level, fw: false)
+        = visibility_level_icon(project.visibility_level, fw: true)
 
     .title
       = link_to project_path(project), class: dom_class(project) do