Merge branch '1947-unification-plain-types' into 'develop'

dependencies/parsers/database

dependencies/parsers/workflow

examples/data/custom-schema/intra-entry.archive.json

examples/data/custom-schema/schema.archive.json

gui/src/components/Quantity.js

gui/src/components/archive/ArchiveBrowser.js

gui/src/components/search/FilterRegistry.js

gui/src/utils.js

gui/tests/artifacts.js

...a/uploads/archive_browser_test_MySection-inter-entry.json

...a/uploads/archive_browser_test_MySection-intra-entry.json

gui/tests/data/uploads/archive_browser_test_Schema.json

nomad/app/optimade/common.py

nomad/app/v1/models/models.py

nomad/archive/required.py

nomad/datamodel/context.py

nomad/datamodel/data.py

nomad/datamodel/datamodel.py

nomad/datamodel/hdf5.py

nomad/datamodel/metainfo/annotations.py