several enhancement

Once we have things working:

Labrepo:
- [x] name parent repo "X.main"
- [x] set default branch to main at least for main repository.
- [x] add labcommons repo, if it exists
- [x] add submodules in lab repository for these submodules too (for each submodule, so it is not dependent on the template ?), create main repo if necessary, add repo to the "write" team of the organisation.
- [ ] disable issue in submodules (or link to issue in .main repository)

add_module
- [ ] make it possible to choose template
- [ ] choosing team and parent repo should be dropdown
- [x] name repo parent.extension (-.main) for example "project1.003_data_raw")
- [ ] add module to parent repo automatically, ask to name the folder with path, with default being 03_data/extension.

NB: some of it is now done via the initiation script.