DEV: enable frozen string literal on all files

This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging

lib/validators/allow_user_locale_enabled_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AllowUserLocaleEnabledValidator
 
   def initialize(opts = {})

lib/validators/allowed_ip_address_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_dependency "spam_handler"
 
 class AllowedIpAddressValidator < ActiveModel::EachValidator

lib/validators/alternative_reply_by_email_addresses_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'validators/reply_by_email_address_validator'
 
 class AlternativeReplyByEmailAddressesValidator

lib/validators/category_search_priority_weights_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CategorySearchPriorityWeightsValidator
   def initialize(opts = {})
     @name = opts[:name].to_s

lib/validators/censored_words_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CensoredWordsValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     if WordWatcher.words_for_action(:censor).present? && (censored_words = censor_words(value, censored_words_regexp)).present?

lib/validators/color_list_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ColorListValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/email_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EmailSettingValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/email_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EmailValidator < ActiveModel::EachValidator
 
   def validate_each(record, attribute, value)

lib/validators/enable_invite_only_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EnableInviteOnlyValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/enable_local_logins_via_email_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EnableLocalLoginsViaEmailValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/enable_private_email_messages_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EnablePrivateEmailMessagesValidator
 
   def initialize(opts = {})

lib/validators/enable_sso_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EnableSsoValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/external_system_avatars_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ExternalSystemAvatarsValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/group_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class GroupSettingValidator
 
   def initialize(opts = {})

lib/validators/integer_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class IntegerSettingValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/ip_address_format_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Allows unique IP address (10.0.1.20), and IP addresses with a mask (10.0.0.0/8).
 # Useful when storing in a Postgresql inet column.
 class IpAddressFormatValidator < ActiveModel::EachValidator

lib/validators/max_emojis_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class MaxEmojisValidator < ActiveModel::EachValidator
 
   def validate_each(record, attribute, value)

lib/validators/max_username_length_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class MaxUsernameLengthValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/min_username_length_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class MinUsernameLengthValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/password_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_dependency "common_passwords/common_passwords"
 
 class PasswordValidator < ActiveModel::EachValidator

lib/validators/pop3_polling_enabled_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "net/pop"
 
 class POP3PollingEnabledSettingValidator

lib/validators/post_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_dependency 'validators/stripped_length_validator'
 
 module Validators; end

lib/validators/quality_title_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'text_sentinel'
 require 'text_cleaner'
 

lib/validators/regex_presence_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RegexPresenceValidator
   include RegexSettingValidation
 

lib/validators/regex_setting_validation.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RegexSettingValidation
 
   def initialize_regex_opts(opts = {})

lib/validators/regex_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RegexSettingValidator
 
   LOREM = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam eget sem non elit tincidunt rhoncus.'.freeze

lib/validators/reply_by_email_enabled_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ReplyByEmailEnabledValidator
 
   def initialize(opts = {})

lib/validators/sso_overrides_email_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class SsoOverridesEmailValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/string_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class StringSettingValidator
 
   include RegexSettingValidation

lib/validators/stripped_length_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Validators; end
 class Validators::StrippedLengthValidator < ActiveModel::EachValidator
   def self.validate(record, attribute, value, range)

lib/validators/topic_title_length_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class TopicTitleLengthValidator < ActiveModel::EachValidator
 
   def validate_each(record, attribute, value)

lib/validators/unicode_username_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UnicodeUsernameValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/unicode_username_whitelist_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UnicodeUsernameWhitelistValidator
   def initialize(opts = {})
     @opts = opts

lib/validators/unique_among_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UniqueAmongValidator < ActiveRecord::Validations::UniquenessValidator
   def validate_each(record, attribute, value)
     old_errors = record.errors[attribute].size

lib/validators/upload_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_dependency "file_helper"
 
 module Validators; end

lib/validators/url_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UrlValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     if value.present?

lib/validators/user_full_name_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UserFullNameValidator < ActiveModel::EachValidator
 
   def validate_each(record, attribute, value)

lib/validators/username_setting_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UsernameSettingValidator
 
   include RegexSettingValidation