refactor terminology usage in important file

examples/uploading/external_project_upload/upload.py

nomad/app/flask/dcat/datasets.py

nomad/app/optimade/elasticsearch.py

nomad/app/v1/models.py

nomad/app/v1/routers/entries.py

nomad/app/v1/routers/uploads.py

nomad/archive/partial.py

nomad/cli/admin/admin.py

nomad/cli/admin/clean.py

nomad/cli/admin/entries.py

nomad/cli/admin/uploads.py

nomad/cli/client/__init__.py

nomad/cli/dev.py

nomad/client/processing.py

nomad/datamodel/__init__.py

nomad/datamodel/datamodel.py

nomad/files.py

nomad/infrastructure.py

nomad/normalizing/__init__.py

nomad/parsing/__init__.py