Add mention of accessibility issues to hCaptcha option in admin page

config/locales-glitch/en.yml

@@ -3,8 +3,8 @@ en:
   admin:
     settings:
       captcha_enabled:
-        desc_html: Enable hCaptcha integration, requiring new users to solve a challenge when confirming their email address. This requires third-party scripts from hCaptcha to be embedded in the email verification page, which may have security and privacy concerns. Users that have been invited through a limited-use invite will not need to solve a CAPTCHA challenge.
-        title: Require new users to go through a CAPTCHA to confirm their account
+        desc_html: This relies on external scripts from hCaptcha, which may be a security and privacy concern. In addition, <strong>this can make the registration process significantly less accessible to some (especially disabled) people</strong>. For these reasons, please consider alternative measures such as approval-based or invite-based registration.<br>Users that have been invited through a limited-use invite will not need to solve a CAPTCHA
+        title: Require new users to solve a CAPTCHA to confirm their account
       enable_keybase:
         desc_html: Allow your users to prove their identity via keybase
         title: Enable keybase integration