Merge commit '55e7c08a83547424024bac311d5459cb82cf6dae' into glitch-soc/merge-upstream

Conflicts:
- `app/models/user_settings.rb`:
  Upstream added a constraint on a setting textually close
  to glitch-soc-only settings.
  Applied upstream's change.
- `lib/sanitize_ext/sanitize_config.rb`:
  Upstream added support for the `translate` attribute on a few elements,
  where glitch-soc had a different set of allowed elements and attributes.
  Extended glitch-soc's allowed attributes with `translate` as upstream did.
- `spec/validators/status_length_validator_spec.rb`:
  Upstream refactored to use RSpec's `instance_double` instead of `double`,
  but glitch-soc had changes to tests due to configurable max toot chars.
  Applied upstream's changes while keeping tests against configurable max
  toot chars.

spec/policies/webhook_policy_spec.rb

@@ -8,16 +8,32 @@ describe WebhookPolicy do
   let(:admin)   { Fabricate(:user, role: UserRole.find_by(name: 'Admin')).account }
   let(:john)    { Fabricate(:account) }
 
-  permissions :index?, :create?, :show?, :update?, :enable?, :disable?, :rotate_secret?, :destroy? do
+  permissions :index?, :create? do
     context 'with an admin' do
       it 'permits' do
-        expect(policy).to permit(admin, Tag)
+        expect(policy).to permit(admin, Webhook)
       end
     end
 
     context 'with a non-admin' do
       it 'denies' do
-        expect(policy).to_not permit(john, Tag)
+        expect(policy).to_not permit(john, Webhook)
+      end
+    end
+  end
+
+  permissions :show?, :update?, :enable?, :disable?, :rotate_secret?, :destroy? do
+    let(:webhook) { Fabricate(:webhook, events: ['account.created', 'report.created']) }
+
+    context 'with an admin' do
+      it 'permits' do
+        expect(policy).to permit(admin, webhook)
+      end
+    end
+
+    context 'with a non-admin' do
+      it 'denies' do
+        expect(policy).to_not permit(john, webhook)
       end
     end
   end