Fix various typos (#17621)

Found via `codespell -q 3 -S ./CHANGELOG.md,./AUTHORS.md,./config/locales,./app/javascript/mastodon/locales -L ba,keypair,medias,ro`

spec/controllers/settings/two_factor_authentication/otp_authentication_controller_spec.rb

@@ -18,7 +18,7 @@ describe Settings::TwoFactorAuthentication::OtpAuthenticationController do
           user.update(otp_required_for_login: true)
         end
 
-        it 'redirects to two factor authentciation methods list page' do
+        it 'redirects to two factor authentication methods list page' do
           get :show
 
           expect(response).to redirect_to settings_two_factor_authentication_methods_path