Renders the other gerbeur instances the signed-in user let their account
sign in to, on /settings.
f
GrantList(): React.JSX.Element
Renders each instance (GET /api/me/grants), when it last signed the user
in, and a button that withdraws it (DELETE /api/me/grants/:host), which
signs them out there; signing in there again asks them again.
Usage
import * as mod from "src/components/federation/GrantList.tsx";