* Performance improvements: faster loads when subscribed to many channels, use more cores, show usernames earlier, and scan private messages faster.
* New messages at the bottom, better error messaging, feed QR codes, and highlight search results in the ssb app.
* Ability to diff app changes.
* Import and export from the db app.
* Support opening ssb: URLs on mobile.
* Minor UI improvements.
* HTTP improvements for handler.js.
* Update: CodeMirror, musl 1.2.6, libsodium 1.0.22, sqlite 3.53.0.
