[build] update apps_layout.csv from EPSILON_APPS flag in make command

[AngeDieu]

I did it ! It's my first real modification of Upsilon (and of any c++ project) ! 🎉

I fixed a bug :
When you buid Upsilon changing the app order with the EPSILON_APPS flag, the layout stayed the old one, and the app you clicked on wasn't the shown one.
It's easier to understand with screenshots:
image
and when I click on it, it opens the python app !
image

To fix it, the apps_layout.csv is automaticly updated from the EPSILON_APPS flag in the make command.

The Default and HidePython layouts are both updated because of the same bug: the layout and the content of the home app isn't synchronized (pressing the graph icon doen't mean go to the graph icon, but go to the app n°x, which can be different from the graph app).

[AngeDieu]

I just renamed the branch

[github-actions]

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