Feature/api endpoint changes

[PlesnikJakub]

Summary

Refactor API to follow REST standard and refactored to update naming of models

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] Refactoring (non-breaking change to code and structure)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Testing

🚨 Provide info about the new tests and tests result

Notes

Added more unit tests

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
12 Code Smells

97.6% Coverage
0.0% Duplication