v15.3.0

✨ Features

• Improve fallback key behaviour (#2037).
• Add new room event filter fields (#2051).
• Add method to fetch /account/whoami (#2046).

🐛 Bug Fixes

• Filter out falsey opts in /relations API hits (#2059). Fixes element-hq/element-web#20137.
• Fix paginateEventTimeline resolve to boolean (#2054).
• Fix incorrect MSC3089 typings and add null checks (#2049).