Allianceauth-afat

Fixed

- Next and current month buttons in corp stats

Fixed

- Error 500 due to non existent EveCorporationInfo objects

Added

- Checked for compatibility with Python 3.9 and Django 3.2

Changed

- Admin views are now searchable
- Manual log removed from admin view. This should be migrated by now to the new
combined log. If you haven't done so yet, see
[update instructions for v2.0.0](-update-instructions-for-v200-) please

Changed

- JS modernized
- FAT link hash creation, to ensure the hash is definitely unique (Not that it
wasn't before, but now it is enforced via its DB table field)

Fixed

- Using Django application registry instead of directly accessing `INSTALLED_APPS`
- Using Django messages API (86)

Added

- Index to `hash` field in AFatLink model (Thanks ErikKalkoken)

Changed

- Time period (year and month select) templates refactored
- FAT link hashes in log are now linked to their respective FAT link details, as
long as the FAT link is not deleted yet (Thanks to ErikKalkoken to let me know
how to do so without firing potentially hundreds of queries against the database)
- Reduced load time for all pages incl. admin site (Thanks ErikKalkoken)