Allow us to drag and drop the Dropbox thumbnail for screenshots to any app (like macOS does).

Problem

Dropbox’s screenshot pop‑up replaces macOS’s floating thumbnail but can’t be dragged into Messages, Slack, Finder, etc., forcing users to hunt for the file.

Request

• Make the Dropbox thumbnail draggable to any app.
• After the drop, keep auto‑upload and markup intact.

Why it matters

Faster one‑step sharing, consistent with native macOS behavior, and fewer users disabling Dropbox screenshots.