Change the behaviour where not passing attribs to the update API
overwrites the attribs with empty values. This commit changes the
behaviour so that in the absence of the attribs field in the
subscriber API, the existing value in the DB is retained.
If a user is already subscribed to an optin list but hasn't
confirmed, subscribing using the same e-mail id from the public
form now re-sends the optin e-mail while also showing an
appropriate message on the frontend rather than just saying
"subscribed successfully".
https://github.com/knadh/listmonk/issues/266https://github.com/knadh/listmonk/issues/264
Lists, campaigns, and subscribers tables now support server-side
sorting from the UI. This significantly changes the internal
queries from prepared to string interpolated to support dynamic
sort params.
Kailash Nadh