Before this commit, the CSS rule handling the "activity" of the modals
(their z-index compared to the one of their backdrop) was global and would
interfere with front-end or custom modals which do not use the static Dialog
methods giving them the "active" class.
Now, the rule has been inverted: the z-index of a modal is only changed when
it is given an "inactive" class, thus only impacting the modals instantiated
via Dialog or Owl Dialog classes.
closesodoo/odoo#44067
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>
Julien Mougenot
5f6571a6fe