send_push_notifications: 1–based counting, improve messages

[PeterNerlich]

Short description

Our `send_push_notifications` management command is giving confusing output.

INFO    integreat_cms.firebase_api.firebase_api_client - <PushNotificationTranslation (id: …, push_notification_id: …, title: …)> sent, FCM id: …
SUCCESS integreat_cms.core.management.commands.send_push_notifications - Successfully sent 0/3 <PushNotification (id: …, channel: …, regions: <QuerySet […]>)>
INFO    integreat_cms.firebase_api.firebase_api_client - <PushNotificationTranslation (id: …, push_notification_id: …, title: …)> sent, FCM id: …
INFO    integreat_cms.firebase_api.firebase_api_client - <PushNotificationTranslation (id: …, push_notification_id: …, title: …)> sent, FCM id: …
SUCCESS integreat_cms.core.management.commands.send_push_notifications - Successfully sent 1/3 <PushNotification (id: …, channel: …, regions: <QuerySet […]>)>
INFO    integreat_cms.firebase_api.firebase_api_client - <PushNotificationTranslation (id: …, push_notification_id: …, title: …)> sent, FCM id: …
INFO    integreat_cms.firebase_api.firebase_api_client - <PushNotificationTranslation (id: …, push_notification_id: …, title: …)> sent, FCM id: …
SUCCESS integreat_cms.core.management.commands.send_push_notifications - Successfully sent 2/3 <PushNotification (id: …, channel: …, regions: <QuerySet […]>)>
SUCCESS integreat_cms.core.management.commands.send_push_notifications - ✔ All 3 scheduled push notifications have been processed.

Successfully sent COUNT/TOTAL–messages are off by one, as we just use for count, pn in enumerate(pns): (0–based).

Additionally, I have ideas how to further improve the messages.

Proposed changes

• Management command:
  • Change enumeration to start at 1
    This removes uncertainty while interpreting logs.
  • Change messages to print object representations at the very end
    This improves readability of logs, as object representations can be very long and wrap multiple lines. With this change first the event/action is clear (length fixed and easily readable even with many similar log lines), then specifics about the object in question can be read (highly variable character count)
• Representations of PushNotification and PushNotificationTranslation
  • Change representations to interpolate strings (like title) quoted, not verbatim
    This improves readability as the start and end of the field in the representation is clearly recognizable.

    - <PushNotificationTranslation (id: 12673, push_notification_id: 1877, title: COURSE START ON 27.01.2025, GENERAL INTEGRATION COURSE FROM MODULE 1 (A1-B1), MO-FR, 9:00-12:30, IN AICHACH)>
    + <PushNotificationTranslation (id: 12673, push_notification_id: 1877, title: "COURSE START ON 27.01.2025, GENERAL INTEGRATION COURSE FROM MODULE 1 (A1-B1), MO-FR, 9:00-12:30, IN AICHACH")>

Side effects

• Any tool depending on the old log output might show unexpected behaviour

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