Add: 4 UnitTests for NurseryListPreviewPresenter

GCP-10159

Reviewer: Crisjaira Villiarino
Chore: Cleanup most SonarQube violations

Also added a fail scenario to testMoveNurseryListFolder()

GCP-10159

Reviewer: Daniel Jao
Chore: Cleanup most SonarQube violations (GermplasmListPreview)

GCP-10159

Reviewer: Crisjaira Villarino
Add: 5 UnitTests for GermplasmListPreviewPresenter

GCP-10159

Reviewer: Daniel Villafuerte