This release fixes three small interface problems in the author and role screens.

## Improvements and fixes

- Users can edit their own author from the author list page.
- The create author button in the article editor now has the same height as the controls next to it.
- The selected role card in the Change role dialog now uses dark text, so its name, description and Current marker are readable on the sand background.

## Under the hood

- Design change logs are consolidated into `docs/design/decisions.md`, and stale docs are refreshed.

## Upgrading

- Replace the binary, or pull the new image. No schema migration and no new environment variable.