Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/196-cttc-new-monitoring-module-testing-and-debugging

Resolve "(CTTC) Multiple CI/CD pipeline fixes"

See merge request !274

- Context: Removed unneeded HTTP-related code
- NBI: Added missing qkd_app client in Dockerfile

Resolve: "(OPT) QKD Application Register (new component)" (enhancements and fixes)

See merge request !272

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/196-cttc-new-monitoring-module-testing-and-debugging

Resolve "(CTTC) Add missing CI/CD descriptor for Analytics component"

See merge request !271

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/199-cttc-add-missing-ci-cd-descriptor-for-analytics-component

Resolve "(TID) Add support to NBI to export the L3 inventory"

See merge request !252

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/174-tid-add-support-to-nbi-to-export-the-l3-inventory

Resolve "(TID) Add support for IETF slices"

See merge request !218

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/tid-add-support-for-ietf-slices

Resolve "Improve common framework to identify deployed components"

See merge request !270

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/198-improve-common-framework-to-identify-deployed-components

Resolve "(CTTC) Generalize Service Database management"

See merge request !267

- Added method to check deployed microservices
- Extended WebUI to activate tabs according to deployed microservices
- Extended Service and PathComp to activate selective parts of code depending on deployed microservices

- Improved Kafka scripts.
- Updated manifests to handle ports for backend and frontend.
- Changed the return type of a method in settings to `int`.
- Added DB deployment in the service's main file.