Since the Bootstrap 5 merge, when there were several TOCs on the same
page the scrollSpy only worked for one of them. This commit fixes that.
Steps to reproduce the bug:
- Drop two TOC blocks on the same page
- Save the page
=> The second TOC is not working properly, it does not highlight the
current section.
Related to opw-3047375
Related to opw-3035502
task-2948895
X-original-commit: c182691bbfd6be8cc9aed26162635f5fdb117991
Part-of: odoo/odoo#107732
Guillaume (gdi)
42e8d2edb0