Before this commit, When you try to edit the link then the link widget is removing 'btn-block' class from the class list of the link node. After this commit, the link widget will allow using 'btn-block' class. closes #78511 closes odoo/odoo#78783 X-original-commit: 888687b487e95b4bf4fb080118b5eb945c8ab724 Signed-off-by: Antoine Guenet <Zinston@users.noreply.github.com>