Before this commit, the test assets were called with a `t-call-assets` and contained
themselves some other `t-call-assets` to the back-end assets. According to the current
specification, having nested `t-call-assets` will result in a compilation of the
lower levels regardless of the current debugging mode.
Now, the test bundles (desktop & mobile) have been arranged so that their `t-call-assets`
are all called on the same level.
closesodoo/odoo#49306
Related: odoo/enterprise#9797
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>