Update custom macros

[KetpuntoG]

When updating the website it has been found that the macros do not work.
This is the list of macros to change -> link
The following demos need to be updated:

• function_fitting_qsp.py
• tutorial_diffable_shadows.py
• tutorial_gbs.py
• tutorial_givens_rotations.py
• tutorial_here_comes_the_sun.py
• tutorial_plugins_hybrid.py
• tutorial_pulse_programming101.py

They will be corrected in different PRs that will address this issue