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

Conflicts:
- `.prettierignore`:
  Upstream added a line at the end of the file, while glitch-soc had its own
  extra lines.
  Took upstream's change.
- `CONTRIBUTING.md`:
  We have our custom CONTRIBUTING.md quoting upstream. Upstream made changes.
  Ported upstream changes.
- `app/controllers/application_controller.rb`:
  Upstream made code style changes in a method that is entirely replaced
  in glitch-soc.
  Ignored the change.
- `app/models/account.rb`:
  Code style changes textually close to glitch-soc-specific changes.
  Ported upstream changes.
- `lib/sanitize_ext/sanitize_config.rb`:
  Upstream code style changes.
  Ignored them.

app/validators/follow_limit_validator.rb

@@ -6,6 +6,7 @@ class FollowLimitValidator < ActiveModel::Validator
 
   def validate(follow)
     return if follow.account.nil? || !follow.account.local?
+
     follow.errors.add(:base, I18n.t('users.follow_limit_reached', limit: self.class.limit_for_account(follow.account))) if limit_reached?(follow.account)
   end
 

app/validators/html_validator.rb

@@ -1,20 +0,0 @@
-# frozen_string_literal: true
-
-class HtmlValidator < ActiveModel::EachValidator
-  ERROR_RE = /Opening and ending tag mismatch|Unexpected end tag/
-
-  def validate_each(record, attribute, value)
-    return if value.blank?
-
-    errors = html_errors(value)
-
-    record.errors.add(attribute, I18n.t('html_validator.invalid_markup', error: errors.first.to_s)) unless errors.empty?
-  end
-
-  private
-
-  def html_errors(str)
-    fragment = Nokogiri::HTML.fragment(options[:wrap_with] ? "<#{options[:wrap_with]}>#{str}</#{options[:wrap_with]}>" : str)
-    fragment.errors.select { |error| ERROR_RE.match?(error.message) }
-  end
-end

app/validators/unreserved_username_validator.rb

@@ -13,12 +13,14 @@ class UnreservedUsernameValidator < ActiveModel::Validator
 
   def pam_controlled?
     return false unless Devise.pam_authentication && Devise.pam_controlled_service
+
     Rpam2.account(Devise.pam_controlled_service, @username).present?
   end
 
   def reserved_username?
     return true if pam_controlled?
     return false unless Setting.reserved_usernames
+
     Setting.reserved_usernames.include?(@username.downcase)
   end
 end