Draft: Add multi-trace support for Node_select window
This branch should be merge after !107
This branch do some refactoring in Node_select.cpp + it adds a ComboBox from which the name of trace can be selected to work on it.
GitLab upgrade completed. Current version is 18.3.6
https://about.gitlab.com/releases/2025/07/17/gitlab-18-2-released/
https://about.gitlab.com/releases/2025/08/21/gitlab-18-3-released/
This branch should be merge after !107
This branch do some refactoring in Node_select.cpp + it adds a ComboBox from which the name of trace can be selected to work on it.