Bio link pages and QR-code analytics shipped

Two related ships:

Bio link pages

Every account now has a public bio link page at {custom-domain}/{handle}. Themed, with avatar, link blocks, view + click analytics, geo-blocking, and a custom OG image.

QR-code analytics

Every shortlink now ships with an auto-generated QR code. Scans are tracked separately from click-through traffic so print and offline campaigns are measurable too.