Since the bootstrap 5 merge at [1], when you click on an image in the
Image Wall block, the modal no longer opens. This commit restores that
and adds a test to make sure this problem does not happen again.
Steps to reproduce:
- Drop the "Image wall" block in a page
- Save
- Click on an image
-> The modal does not open
[1]: https://github.com/odoo/odoo/commit/971e5a91aab96d36129a823e03f1f9f1b1293968
task-2937538
closesodoo/odoo#97053
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>