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

Conflicts:
- app/lib/sanitize_config.rb
  Keep our version, we support the tags upstream transforms.
- package.json
- yarn.lock

spec/lib/sanitize_config_spec.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+require Rails.root.join('app', 'lib', 'sanitize_config.rb')
+
+describe Sanitize::Config do
+  describe '::MASTODON_STRICT' do
+    subject { Sanitize::Config::MASTODON_STRICT }
+
+    it 'keeps h1' do
+      expect(Sanitize.fragment('<h1>Foo</h1>', subject)).to eq '<h1>Foo</h1>'
+    end
+
+    it 'keeps ul' do
+      expect(Sanitize.fragment('<p>Check out:</p><ul><li>Foo</li><li>Bar</li></ul>', subject)).to eq '<p>Check out:</p><ul><li>Foo</li><li>Bar</li></ul>'
+    end
+  end
+end