Feat: handle scroll offset on anchor links

Questions	Answers
Description?	Add functionality to handle the offset of a sticky header when clicking on anchor links and prevent item overlapping.
Type?	new feature
BC breaks?	no
Deprecations?
Fixed ticket?
Sponsor company	@PrestaShopCorp
How to test?	This feature is related to an issue find in this PR https://github.com/PrestaShop/hummingbird/pull/640#pullrequestreview-2118549210 (BUG 1)

Before:

After:

PrestaShop / hummingbird