Remove PhasespaceDefinition in favor of PhaseSpaceLayout

[szabo137]

Fix for QEDjl-project/QEDbase.jl#150

Summary

• removed PhasespaceDefinition
• updated PhaseSpacePoint and related subtypes
• updated tests respectively

TODO

• Update pretty printing
• Update docs

[AntonReinhard]

Looks good

[AntonReinhard]

At some point we need a concrete PhaseSpaceLayout, should this be defined in this PR? Or in QEDprocesses?

[szabo137]

@SimeonEhrig Could you please come to rescue: How do I change the depency on QEDbase for the docs building? The CI for doc building should use https://github.com/AntonReinhard/QEDbase.jl#remove-psdef but used the dev-branch of QEDbase instead.

[SimeonEhrig]

@SimeonEhrig Could you please come to rescue: How do I change the depency on QEDbase for the docs building? The CI for doc building should use https://github.com/AntonReinhard/QEDbase.jl#remove-psdef but used the dev-branch of QEDbase instead.

No supported for GitHub Actions 😅
The function is prepared for it: https://github.com/QEDjl-project/QuantumElectrodynamics.jl/blob/9cb97f84047a2740786a072a9184fbca6e3dbb82/.ci/CI/src/modules/Utils.jl#L297C10-L297C44
I simply does not check, if I'm on GitHub Actions or GitLab CI. It assumes GItLab CI all the time. Therefore the commit message is not set on GitHub Actions and I cannot extract custom URLs. I will implement the feature.

[SimeonEhrig]

@szabo137 Supporting custom URLs in GitHub Actions requires more work than expected. I need to clean up and refactor some parts of CI library because GitHub Actions has a strange behavior if you set environment variables:
https://stackoverflow.com/questions/74353311/github-workflow-unable-to-process-file-command-env-successfully

I will do it after my vacations.