fix some breadcrumb titles that are wrong

changed color of divider

app/assets/stylesheets/new_nav.scss

@@ -376,6 +376,7 @@ header.navbar-gitlab-new {
       &::after {
         content: "/";
         margin: 0 2px 0 5px;
+        color: rgba($black, .65);
       }
     }
 

app/assets/stylesheets/new_sidebar.scss

@@ -22,7 +22,7 @@ $new-sidebar-width: 220px;
   font-weight: 600;
   display: flex;
   align-items: center;
-  padding: 10px 14px;
+  padding: 10px 14px 9px;
 
   .avatar-container {
     flex: 0 0 40px;

app/views/groups/activity.html.haml

+- @breadcrumb_title = "Activity"
 = content_for :meta_tags do
   = auto_discovery_link_tag(:atom, group_url(@group, rss_url_options), title: "#{@group.name} activity")
 

app/views/projects/activity.html.haml

 - @no_container = true
+- @breadcrumb_title = "Activity"
 
 - page_title "Activity"
 = render "projects/head"

app/views/projects/graphs/charts.html.haml

 - @no_container = true
+- @breadcrumb_title = "Charts"
 - page_title "Charts"
 - content_for :page_specific_javascripts do
   = page_specific_javascript_bundle_tag('common_d3')

app/views/projects/graphs/show.html.haml

 - @no_container = true
+- @breadcrumb_title = "Contributors"
 - page_title "Contributors"
 - content_for :page_specific_javascripts do
   = page_specific_javascript_bundle_tag('common_d3')

app/views/projects/network/show.html.haml

+- @breadcrumb_title = "Graph"
 - page_title "Graph", @ref
 - content_for :page_specific_javascripts do
   = page_specific_javascript_bundle_tag('network')