Resolve "Replace/remove django-middleware-global-request"

Closes #193

See merge request !584

Resolve "Allow using Django-local accounts in addition to LDAP accounts"

Closes #388 und #389

See merge request !501

Add missing migration for PDFFile

See merge request !576

Update dependency importlib-metadata to v4

See merge request !577

Resolve "Remove title from dashboard"

Closes #428

See merge request !581

Resolve "Fix link of header brand logo text"

Closes #427

See merge request !582

Resolve "Allow control over self-editing of person"

Closes #245

See merge request !563

Update dependency django-any-js to ^1.1

See merge request !579

Support storage location for s3

See merge request !578

Update copyright information for 2021 (and partially for 2020)

See merge request !575

Merge branch '357-support-pdf-generation-via-electron-pdf-running-in-the-background-using-celery' into 'master'

Resolve "Support PDF generation via a headless Chromium running in the background using celery"

Closes #357

See merge request !464

Merge branch 'master' into 357-support-pdf-generation-via-electron-pdf-running-in-the-background-using-celery

[Docker] Base on debian:bullseye-slim

See merge request !574

* We get Python 3.9 from Debian
* We can use uWSGI from Debian
* We get postrgedql-client 13 (so pg_dump in dbbackup can dum pfrom PostgreSQL 13)

Resolve "[Backup/Storage] Improve configuration and enable S3"

Closes #424

See merge request !573