This fix removes leftover spaces from internal access record identifiers in the Board, Mail, and Project areas. Keeping these identifiers consistent helps avoid errors during module updates, migrations, or integrations that reference those records.

This was already performed on 3c568aec0b46, but there still are some
remnants on model access records.

Fixes odoo/odoo#25408
Closes odoo/odoo#37946

Cherry pick in master for safety