FIX: use allowlist and blocklist terminology (#10209)

This is a PR of the renaming whitelist to allowlist and blacklist to the blocklist.

lib/validators/email_validator.rb

@@ -17,9 +17,9 @@ class EmailValidator < ActiveModel::EachValidator
   end
 
   def self.allowed?(email)
-    if (setting = SiteSetting.email_domains_whitelist).present?
+    if (setting = SiteSetting.allowed_email_domains).present?
       return email_in_restriction_setting?(setting, email) || is_developer?(email)
-    elsif (setting = SiteSetting.email_domains_blacklist).present?
+    elsif (setting = SiteSetting.blocked_email_domains).present?
       return !(email_in_restriction_setting?(setting, email) && !is_developer?(email))
     end
 

lib/validators/unicode_username_allowlist_validator.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class UnicodeUsernameWhitelistValidator
+class UnicodeUsernameAllowlistValidator
   def initialize(opts = {})
     @opts = opts
   end
@@ -10,12 +10,12 @@ class UnicodeUsernameWhitelistValidator
     return true if value.blank?
 
     if value.match?(/^\/.*\/[imxo]*$/)
-      @error_message = I18n.t("site_settings.errors.unicode_username_whitelist.leading_trailing_slash")
+      @error_message = I18n.t("site_settings.errors.allowed_unicode_usernames.leading_trailing_slash")
     else
       begin
         Regexp.new(value)
       rescue RegexpError => e
-        @error_message = I18n.t("site_settings.errors.unicode_username_whitelist.regex_invalid", error: e.message)
+        @error_message = I18n.t("site_settings.errors.allowed_unicode_usernames.regex_invalid", error: e.message)
       end
     end
 

lib/validators/upload_validator.rb

@@ -12,9 +12,9 @@ class UploadValidator < ActiveModel::Validator
       return true if upload.user&.staff?
     end
 
-    # check the attachment blacklist
+    # check the attachment blocklist
     if upload.for_group_message && SiteSetting.allow_all_attachments_for_group_messages
-      return upload.original_filename =~ SiteSetting.attachment_filename_blacklist_regex
+      return upload.original_filename =~ SiteSetting.blocked_attachment_filenames_regex
     end
 
     extension = File.extname(upload.original_filename)[1..-1] || ""