Jump to Explorer from disposition counts

The Quarantined and Rejected counts on the domain overview card now link directly to the Explorer, pre-filtered by that disposition.
Hover over the card to reveal the navigation arrows next to each label, then click to open the Explorer with the corresponding disposition filter already applied.
This makes it faster to investigate deliverability issues: when you notice quarantined or rejected mail in the summary, you can jump straight into the Explorer to see exactly which sources are sending that mail, what DMARC and SPF/DKIM results they are producing, and which domains or selectors are involved.
