refactor: standardize naming conventions across the project

[appellet]

• Refactored all names to be consistent throughout the project.
• Removed a test that was using the real database.
• Fixed navigation elements to ensure proper routing.

[sonarcloud[bot]]

Quality Gate passed

Issues
10 New issues
0 Accepted issues

Measures
0 Security Hotspots
65.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud