Caluma-alexandria

Feature
* **category:** Add has_parent filter for categories ([`1ba5aa8`](https://github.com/projectcaluma/alexandria/commit/1ba5aa83f4d8545ca923a82b8464e0ee6e6fb42f))
* **category:** Allow nesting of categories ([`9b38fc7`](https://github.com/projectcaluma/alexandria/commit/9b38fc746a68f9de4f0c94d16d6aca91e8dcd1c5))
* Generate thumbnails without s3 hooks ([`a96a917`](https://github.com/projectcaluma/alexandria/commit/a96a917610a380ab0b89913346a31f339f099907))

Fix
* Add validation if a thumbnail was generated ([`665fb50`](https://github.com/projectcaluma/alexandria/commit/665fb508b7fd8607a6ff67be4fc1848f402ba5ce))
* Remove redundant thumbnail option ([`9788962`](https://github.com/projectcaluma/alexandria/commit/9788962d3eaff84969c15e570a11c5468c619ed4))

Fix
* **settings:** Remove import in settings init file ([`3a86060`](https://github.com/projectcaluma/alexandria/commit/3a8606069ef257b8d8fa08d12e0cc46ab3d2e05c))

Fix
* **docker:** Remove obsolete system dependencies ([`2e2f8a2`](https://github.com/projectcaluma/alexandria/commit/2e2f8a2081aa0603157d7df41e0981ac4824def4))
* **settings:** Prefix alexandria settings ([`5791f3d`](https://github.com/projectcaluma/alexandria/commit/5791f3d8fbb7cf4a9fa37917ac2b1ac2a1b71ce2))

Breaking
* Removed image previews for RAW, VTK and scribus files. ([`2e2f8a2`](https://github.com/projectcaluma/alexandria/commit/2e2f8a2081aa0603157d7df41e0981ac4824def4))
* All alexandria specific settings and environment variables have been renamed to include a prefix in order to avoid conflicts when using alexandria as a django app instead of a container. ([`5791f3d`](https://github.com/projectcaluma/alexandria/commit/5791f3d8fbb7cf4a9fa37917ac2b1ac2a1b71ce2))
The following breaking changes in settings and environment variables have been made:

* `ALLOW_ANONYMOUS_WRITE` was renamed to `ALEXANDRIA_ALLOW_ANONYMOUS_WRITE`
* `DEV_AUTH_BACKEND` was renamed to `ALEXANDRIA_DEV_AUTH_BACKEND`
* `ENABLE_THUMBNAIL_GENERATION` was renamed to `ALEXANDRIA_ENABLE_THUMBNAIL_GENERATION`
* `MEDIA_STORAGE_SERVICE` was renamed to `ALEXANDRIA_MEDIA_STORAGE_SERVICE`
* `MINIO_PRESIGNED_TTL_MINUTES` was renamed to `ALEXANDRIA_MINIO_PRESIGNED_TTL_MINUTES`
* `MINIO_STORAGE_ACCESS_KEY` was renamed to `ALEXANDRIA_MINIO_STORAGE_ACCESS_KEY`
* `MINIO_STORAGE_AUTO_CREATE_MEDIA_BUCKET` was renamed to `ALEXANDRIA_MINIO_STORAGE_AUTO_CREATE_MEDIA_BUCKET`
* `MINIO_STORAGE_ENDPOINT` was renamed to `ALEXANDRIA_MINIO_STORAGE_ENDPOINT`
* `MINIO_STORAGE_MEDIA_BUCKET_NAME` was renamed to `ALEXANDRIA_MINIO_STORAGE_MEDIA_BUCKET_NAME`
* `MINIO_STORAGE_SECRET_KEY` was renamed to `ALEXANDRIA_MINIO_STORAGE_SECRET_KEY`
* `MINIO_STORAGE_USE_HTTPS` was renamed to `ALEXANDRIA_MINIO_STORAGE_USE_HTTPS`
* `THUMBNAIL_HEIGHT` was renamed to `ALEXANDRIA_THUMBNAIL_HEIGHT`
* `THUMBNAIL_WIDTH` was renamed to `ALEXANDRIA_THUMBNAIL_WIDTH`
* `PERMISSION_CLASSES` has been removed in favor of already existing `ALEXANDRIA_PERMISSION_CLASSES`
* `VALIDATION_CLASSES` has been removed in favor of already existing `ALEXANDRIA_VALIDATION_CLASSES`
* `VISIBILITY_CLASSES` has been removed in favor of already existing `ALEXANDRIA_VISIBILITY_CLASSES`

Feature
* Make properties for created_by configurable ([`c18dc06`](https://github.com/projectcaluma/alexandria/commit/c18dc06224fd8bf25090fc64906ac058aac8024f))
* Let the oidc user model be configurable ([`74c673a`](https://github.com/projectcaluma/alexandria/commit/74c673aff740b2c495f36ed4ca67468f8fd140e3))

Fix
* Extract serializer permissions ([`775f2b7`](https://github.com/projectcaluma/alexandria/commit/775f2b7f56fd822e644fea04bf96a6857e8c9609))
* Use correct minio error ([`86ef544`](https://github.com/projectcaluma/alexandria/commit/86ef5442f2cfb3d9a094a26f071a38e258ff6a4e))

Fix
* Visibility config default ([`1275d26`](https://github.com/projectcaluma/alexandria/commit/1275d26b192818d5603bd43a91207943f4dad377))

Fix
* Make deprecated VISIBILITY_CLASSES env var optional ([`20f4553`](https://github.com/projectcaluma/alexandria/commit/20f45538e4bc4ce789fa65b522cfdd45f2a587c3))