208 - Fix Files table incorrect behavior when changing page size

[MellyGray]

What this PR does / why we need it:

This PR fixes an issue in develop where when changing the page size of the Files Table from a bigger size to a smaller size, being the current page the last page of the pagination, the Files Table shows the Files not found message. The expected behaviour is that the Files Table should show the list of files.

Which issue(s) this PR closes:

• Closes Fix - Change page size of the Files Table #208

Special notes for your reviewer:

I didn't add an e2e test because I was able to reproduce the bug with unit tests, so I just added some unit tests.

Suggestions on how to test this:

Step 1: Run the development environment

1. Run npm i
2. cd packages/design-system && npm run build
3. cd ../../
4. Check that you have a .env file such as the .env.example, with the VITE_DATAVERSE_BACKEND_URL=http://localhost:8000 variable
5. cd dev-env
6. ./run-env.sh unstable
7. To check the environment go to http://localhost:8000 and check your local dataverse installation

Step 2: Test Dataset View mode with the implemented changes for the getDatasetFilesTotalDownloadSize

1. Go to http://localhost:8000
2. Login as admin using username: dataverseAdmin and password: admin1
3. Create a new Dataset
4. Upload 32 files
5. From the dataset view mode copy the search parameters from the url. Ex.: ?persistentId=doi:10.5072/FK2/LHGRHP&version=DRAFT
6. Go to http://localhost:8000/spa/datasets and paste the search parameters. Ex.: http://localhost:8000/spa/datasets?persistentId=doi:10.5072/FK2/LHGRHP&version=DRAFT
7. You are seeing now the same Dataset in the SPA. Now, follow the steps to reproduce the issue and check that now it's working as expected.
8. Create a dataset with more than 10 files, around 30
9. Go to page 2
10. change the page size to 50
11. change the page size back to 10
12. There is a message 'There are no files in this dataset' <- This should not appear

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

No

Is there a release notes update needed for this change?:

No

Additional documentation:

[coveralls]

coverage: 98.426%. remained the same
when pulling 63d69d2 on 208/fix-change-page-size-of-the-files-table
into 0c9a2b8 on develop.

[GPortas]

Looks good!