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

Conflicts:
- `app/controllers/about_controller.rb`:
  Minor conflict caused by glitch-soc's theming system.
  Ported upstream changes.

app/models/user.rb

@@ -89,6 +89,13 @@ class User < ApplicationRecord
   validates_with EmailMxValidator, if: :validate_email_dns?
   validates :agreement, acceptance: { allow_nil: false, accept: [true, 'true', '1'] }, on: :create
 
+  # Those are honeypot/antispam fields
+  attr_accessor :registration_form_time, :website, :confirm_password
+
+  validates_with RegistrationFormTimeValidator, on: :create
+  validates :website, absence: true, on: :create
+  validates :confirm_password, absence: true, on: :create
+
   scope :recent, -> { order(id: :desc) }
   scope :pending, -> { where(approved: false) }
   scope :approved, -> { where(approved: true) }