Sequencer: Add hyperlink support to the Send Email action editor

What you'd be able to do: Select a word or phrase in the Send Email action's email editor and turn it into a clickable hyperlink, just like in a standard email composer.

Why it helps: Outreach emails often need to include linked text (e.g. "book a call here" or "view the case study") rather than bare URLs. Without hyperlinking, users either paste raw URLs that look cluttered, or lose the ability to include inline links entirely.

Today: The Send Email action editor does not currently support inserting hyperlinks on words or phrases.

Status: Reported and under investigation.