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`