An option for subscription emails that provides a link for users to log in to the Metabase portal

[FilmonK]

Is your feature request related to a problem? Please describe.
An option for a subscription email to be a link for a user to login to Metabase portal to view data rather than having the data displayed in the email.

Describe the solution you'd like
When creating email subscriptions for certain data dashboards, instead of just sending what's in the dashboard, they would like the option of sending an email that new data is available. They would also like for the ability within the subscription area to have a section to compose the email or have a template.

Dear xxx,

Your Data portal has new data, click here to access and download it today.

Best wishes

The end users could then click on the link to access their dashboard to access the data.
That way data isn't sent within the email which isn't secure enough.