POLIO-1797 paginate dashboard endpoints

[quang-le]

endpoints consumed for ETL are not always paginated by default

Related JIRA tickets : POLIO-1797

Self proofreading checklist

• Did I use eslint and black formatters
• Is my code clear enough and well documented
• Are my typescript files well typed
• New translations have been added or updated if new strings have been introduced in the frontend
• My migrations file are included
• Are there enough tests
• Documentation has been included (for new feature)

Doc

NA

Changes

• group /polio/dashboards/ endpoints in same folder
• Make all viewsets inherit EtlModelViewset
• add test on default pagination query params

How to test

With Django API, test endpoints: pagination (limit=20&page=1) should be added to the API if not passed as queryparams directly

Print screen / video

NA

Notes

commit:

fix: paginate dashboard endpoints

refs: POLIO-1797

[mathvdh]

I think it's very cleaning with the use of EtlModelViewset.
We might want to rename it to ForcedPaginatedViewset or something as it is not specific to ETL ( We force pagination in other places like vaccine stock documents) but that's a detail