Release 2.8.1

Note that this version replaces 2.8.0 that had some missing commits due
to an MR that was merged in to `main`.

Includes:
- manual author classification including migrations for project_db
- refactor of `project_apply_migrations` to have more control over the
  recompute after the migration
- Fixes to a number of normalisers
- Fix to pagination
- Improvements to console to use shared components in gather pages