Ephios

* Design fixes (532)

Features

* add placeholder participations (471)
* Design rework: bootstrap 5, scss, colors (494)
* Design update (512, 513, 530)
* don't send notifications for own actions, add urls for push notifications (519)
* refactor SignupStats to use missing and free counts (511)

Bugfixes

* fix wrong select2 event, fix missing select2 translations (525)

Other

* fix method naming (514)
* poetry update (493)

* restrict calendar view to events that the user is allowed to view (469)

* add missing translations for v0.7 (465)

Bugfixes

* fix custom notification for deleted event (451)

Features

* add display of pending consequences for the current user (337)
* add calendar view for events (405)
* add maximum number of participants to section based signup (456)

Bugfixes

* disable notifications for inactive users (444)