Suggestion: make subscribeConfirmLink a config rather than a form data

[cyChop]

For the case of double opt-in for notifications, the subscribeConfirmUrl must be provided as a field of options in the form. However, I think this link is not related to a specific comment. As such, I'm not sure it belongs in the form.

It would appear more logical to me to make it part of the site config (I know where my server is) or the server config (I know where I, the server, am).

Or is it for GDPR purpose, in order to save this information along with the rest?

[hispanic]

Good point. After revisiting the code, I imagine it could be incorporated into the JSON config schema and sourced from the server config. It was first added as part of the GDPR-compliance pull request, but it isn't one of the data points saved for that purpose.