Resolve "[OpenID Connect] Group claim"

Closes #510

See merge request !718

Update dependency django-bleach to ^0.8.0

See merge request !715

Resolve "Imprint missing in footer"

Closes #502

See merge request !713

Update changelog from 2.0rc5

See merge request !714

(cherry picked from commit ba297070)

Update dependency django-ipware to v4

See merge request !706

Translations update from Weblate

See merge request !712

Currently translated at 100.0% (589 of 589 strings)

Translation: AlekSIS/AlekSIS-Core
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis/de/

Update translation files

See merge request !711

Translations update from Weblate

See merge request !671

Update django to latest version

See merge request !704

Resolve "TypeError at /celery_progress/.../ 'AnonymousUser' object is not iterable"

Closes #498

See merge request !703

Resolve "Allow apps to register OAuth scopes"

Closes #495

See merge request !698

Update changelog from 2.0rc4

See merge request !700

(cherry picked from commit 7f22f081)

This replaces the settings merging for the static
`OAUTH2_PROVIDER["SCOPES"]` setting.

Attention: Breaking change, only release with next major version. Can
be backported to minor release if support for old mechanism is glued
into the new one, with a deprecation warning.

Resolve "Error in 5xx pages"

Closes #494

See merge request !696

Merge branch '494-error-in-5xx-pages' of edugit.org:AlekSIS/official/AlekSIS-Core into 494-error-in-5xx-pages

Resolve "serviceworker.js delievered as binary chunks"

Closes #493

See merge request !695