Feature: Rewamp super admin dashboard (#882)

app/fields/avatar_field.rb

@@ -0,0 +1,7 @@
+require 'administrate/field/base'
+
+class AvatarField < Administrate::Field::Base
+  def avatar_url
+    data.presence || '/admin/avatar.png'
+  end
+end

app/fields/count_field.rb

@@ -0,0 +1,7 @@
+require 'administrate/field/base'
+
+class CountField < Administrate::Field::Base
+  def to_s
+    data.count
+  end
+end