Andreas Svanberg 23e0a7f5ea Improvements to the Excel export of projects ()
The research area column show the string "null" instead of being an empty cell for projects without a research area. This has been fixed everywhere and not just on the project export.

The reviewer column showed weird technical details (`User#toString()`) instead of the reviewers name.

## How to test
1. On `develop` branch
2. Log in as the default admin
3. Go to "Project management / Projects"
4. Click "Excel export" under the table
5. Open the file and see
6. Repeat 1-5 on this branch

Co-authored-by: Nico Athanassiadis <nico@dsv.su.se>
Reviewed-on: 
Reviewed-by: Nico Athanassiadis <nico@dsv.su.se>
Co-authored-by: Andreas Svanberg <andreass@dsv.su.se>
Co-committed-by: Andreas Svanberg <andreass@dsv.su.se>
2025-03-05 14:07:47 +01:00
..