Action Text Sanitizer update to more inclusive language

How I went about updating my Action Text allowed tags/attributes

Now that we are rightly as a community removing references in Rails to language such as blacklist and whitelist, I thought I would share how I updated my action_text.rb file to use more inclusive terms that are now available in Rails.

Before I had to use:

Rails::Html::WhiteListSanitizer.allowed_tags << 'iframe’

And this is now able to be:

Rails::Html::Sanitizer.safe_list_sanitizer.allowed_tags << 'iframe’

You may find that if you update Rubocop you will be alerted to Naming/InclusiveLanguage: Consider replacing problematic term 'WhiteList' with 'allowlist' or 'permit’. in this file.

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