Move welcome pages to individual partials

app/views/dashboard/projects/_zero_authorized_projects.html.haml

-- publicish_project_count = ProjectsFinder.new(current_user: current_user).execute.count
-.blank-state.blank-state-welcome
-  %h2.blank-state-welcome-title
-    Welcome to GitLab
-  %p.blank-state-text
-    Code, test, and deploy together
-
-- if current_user.can_create_group?
-  .blank-state
-    .blank-state-icon
-      = custom_icon("group", size: 50)
-    %h3.blank-state-title
-      You can create a group for several dependent projects.
+.row.blank-state-parent-container
+  .col-md-6.section-container
+    .section-body.section-welcome
+      .blank-state.blank-state-welcome
+        %h2.blank-state-welcome-title
+          Welcome to GitLab
+        %p.blank-state-text
+          Code, test, and deploy together
+      - if current_user.admin?
+        = render "blank_state_admin_welcome"
+      - else
+        = render "blank_state_welcome"
\ No newline at end of file
-    %p.blank-state-text
-      Groups are the best way to manage projects and members.
-    = link_to new_group_path, class: "btn btn-new" do
-      New group
-
-.blank-state
-  .blank-state-icon
-    = custom_icon("project", size: 50)
-  %h3.blank-state-title
-    You don't have access to any projects right now
-  %p.blank-state-text
-    - if current_user.can_create_project?
-      You can create up to
-      %strong= number_with_delimiter(current_user.projects_limit)
-      = succeed "." do
-        = "project".pluralize(current_user.projects_limit)
-    - else
-      If you are added to a project, it will be displayed here.
-  - if current_user.can_create_project?
-    = link_to new_project_path, class: "btn btn-new" do
-      New project
-
-- if publicish_project_count > 0
-  .blank-state
-    .blank-state-icon
-      = icon("globe")
-    %h3.blank-state-title
-      There are
-      = number_with_delimiter(publicish_project_count)
-      public projects on this server.
-    %p.blank-state-text
-      Public projects are an easy way to allow everyone to have read-only access.
-    = link_to trending_explore_projects_path, class: "btn btn-new" do
-      Browse projects