Update button style for new brand

[M0rgan01]

Questions	Answers
Description?	Update button style for new brand
Type?	improvement
BC breaks?	no
Deprecations?	no
Fixed ticket?	Fixes #https://github.com/PrestaShop/PrestaShop/issues/34900
Linked PR	https://github.com/PrestaShop/ps-org-theme/pull/13
Sponsor company	-
How to test?	-

The new buttons have a new class, to avoid conflicts with those of bootstrap, like on prestashop.com. See https://github.com/PrestaShop/ps-org-theme/pull/13

[matks]

Thank you @M0rgan01