[MAINTENANCE] Complete Frontend Test

[jacquesfize]

L'objectif de cette PR est :

• Factoriser les tests Cypress en fonction des best_practices recommandées par Cypress https://docs.cypress.io/guides/references/best-practices
• Étendre la couverture de tests fonctionnels de GeoNature
• Inclure des tests individuels de chaque composant custom de GeoNature

Issue associée: #2940

Ressources

• How to Dependency Inject an Object with Cypress Component Testing cypress-io/cypress#23842

TODO LIST

• Renommer *.spec.ts --> *.cy.ts
• Fichier type pour faire du test de composant
• Création dossier pour regrouper les classes mockées
• Faire une liste des components à tester

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.45%. Comparing base (ec1f160) to head (9ffcf4d).
Report is 32 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2939      +/-   ##
===========================================
- Coverage    78.50%   78.45%   -0.06%     
===========================================
  Files           89       89              
  Lines         7208     7204       -4     
===========================================
- Hits          5659     5652       -7     
- Misses        1549     1552       +3     

Flag	Coverage Δ
pytest	78.45% <ø> (-0.06%)	⬇️

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