v1.3.0 - Bug fixes, robustness, modularization and test suite coverage

This release does not bring any new feature. It focuses instead on fixing bugs, a more modular architecture and a better coverage of the automated test suites (both backend and frontend). It is nonetheless an important milestones since it will make it easier for us to bring new features to Karto in the future! DaemonSets and StatefulSets should land soon :)