Merge branch 'new-model-based-on-calendar' of edugit.org:aleksis/official/aleksis-app-chronos into new-model-based-on-calendar

Merge branch 'new-model-based-on-calendar' of edugit.org:aleksis/official/aleksis-app-chronos into new-model-based-on-calendar

Currently still without the actual calendar component

Do release 3.0.1

See merge request !306

Update .eslintrc.js

See merge request !303

Update pyproject.toml

See merge request !305

Merge branch 'new-model-based-on-calendar' of edugit.org:aleksis/official/aleksis-app-chronos into new-model-based-on-calendar

Resolve "Fixtures contain old Room model"

Closes #205

See merge request !304