VAL-272 [ACCORDION] Give possibility to set content padding

[mattgoud]

https://forge.prestashop.com/browse/VAL-272
Context and needs :

Jonathan Renard needs to specify his custom padding for the content inside "Accordion" component. Currently, padding and margin for the content are wrote directly in PUIK

Formulation US

As an user of PUIK, I need to specify custom padding and margin for the content in "accordion" component thanks to spacing token (4, 8, 16, 24 ...)

Details :

Add props "padding" and "margin" with a list of token available (p-4, p-8 ... or m-4, m-8 ...etc) and put p-4 and m-4 as default.