[FIX] web: render custom checboxes unclickable on sample data

Custom checkboxes were clickeable on sample data, generating errors.

closes odoo/odoo#62296

Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com>

addons/web/static/src/scss/views.scss

@@ -82,6 +82,10 @@
         }
     }
 
+    .custom-checkbox {
+        pointer-events: none !important;
+    }
+
     .o_nocontent_help {
         border-radius: 20%;
         background-color: #f9f9f9;