Resolve "CSS arrows for django-tables2 materialize"

Closes #358

See merge request !465

Make help text in Materialize forms smaller

See merge request !463

Resolve "Add own menu entry for notifications"

Closes #327

See merge request !447

Bugfix/do not link person if anonymous

See merge request !461

Always return False for `has_person` if not logged in

See merge request !460

Revert "Support custom authentication backends"

Closes #313

See merge request !459

Enable all panels in djdt

See merge request !458

Resolve "Allow automatic linking of persons to account by e-mail address"

Closes #332

See merge request !414

Update tox.ini; compile messages before building dist

See merge request !457

Support `to_python` on fake proxy field

See merge request !456

Resolve "Support syncing fields across foreign keys"

Closes #320

See merge request !396

Migrate to django-menu-generator-ng

See merge request !451

Resolve "Add partial for Materialize chips"

Closes #348

See merge request !448

Resolve "Edit dashboard: Improve UI for creation"

Closes #339

See merge request !446

Resolve "Fix path to Sortable.js"

Closes #347

See merge request !445

Resolve "Do not allow to add hidden dashboard widgets to personal dashboard"

Closes #346

See merge request !444

Clean up ci pipeline. Advances AlekSIS#14

See merge request !442

Translations update from Weblate

See merge request !441

Currently translated at 100.0% (439 of 439 strings)

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