- Update GeoServer to 2.19.7

- Update to GeoNode 3.3.2

- Switch from COMPOSE_PROJECT_NAME to docker-compose.yml::name

- Add external dependencies as submodules:

  - Dashboard

  - geonode_contribs -> sta_service

  - geonode-mapstore-client

- Add backup and restore script

- Improve docker-build.sh script

- Harmonize base images