Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/views/admin/settings/edit.html.haml:
  Conflict due to how the theming settings change.

app/policies/user_policy.rb

@@ -21,6 +21,14 @@ class UserPolicy < ApplicationPolicy
     staff?
   end
 
+  def approve?
+    staff? && !record.approved?
+  end
+
+  def reject?
+    staff? && !record.approved?
+  end
+
   def disable?
     staff? && !record.admin?
   end
@@ -36,7 +44,7 @@ class UserPolicy < ApplicationPolicy
   private
 
   def promoteable?
-    !record.staff? || !record.admin?
+    record.approved? && (!record.staff? || !record.admin?)
   end
 
   def demoteable?