Add follow mode (-f) to REQ command (#220)

* feat: add -f (follow) option to req command

Add tail -f style auto-refresh behavior to the req command. When enabled,
new events are automatically displayed instead of being buffered behind
a "X new events" button.

src/components/WindowRenderer.tsx

@@ -162,6 +162,7 @@ export function WindowRenderer({ window, onClose }: WindowRendererProps) {
             relays={window.props.relays}
             closeOnEose={window.props.closeOnEose}
             view={window.props.view}
+            follow={window.props.follow}
             nip05Authors={window.props.nip05Authors}
             nip05PTags={window.props.nip05PTags}
             domainAuthors={window.props.domainAuthors}