[FIX] web: list: multi-edition of owl fields

Before this commit, it wasn't possible to multi-edit boolean
fields in list views. Actually, it didn't work for fields rendered
by Owl components. It only impacted boolean fields because it was
the only editable field widget that had already been converted in
Owl.

It didn't work because of three issues:
 1) there is some sort of an hack in basic renderers: we set the
    attribute '__node' on the field widgets, and this attribute is
    used for instance by the controller, when it has to handle a
    multi-edition. It tries to read it from the event's target
    (typically the field widget). However, with owl components,
    '__node' was set on the FieldWrapper (wrapping the actual
    Field Component).
 2) the original target (the Owl Component which triggered the
    event) was lost when the event went through the compatibility
    layer (for owl Component embedded in legacy widgets).
 3) the multi-edition confirm dialog didn't handle Owl field
    components.

Task 2254717

closes odoo/odoo#51044

X-original-commit: 36d23cfcdef3cea3539004ee5bb4479b859b8137
Signed-off-by: Michaël Mattiello <mcm-odoo@users.noreply.github.com>
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

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