Due to #82724 and 8ec7739dd72fa0976697f7738b225dbb9efa7c97,
the qweb renderer can't be used directly, however there is no way to use
the proper ir.qweb one without a database.
This is necessary for the /web/database/ routes (db manager) which work
without a database, and require qweb rendering since the abandon of
jinja rendering in v15.
This patch builds on the preparation work of the qweb/ir_qweb merge in #81024
which introduces a limited helper `render()` method in ir_qweb so that
it can be used statically without a database.
Fixes#82835closesodoo/odoo#82841
X-original-commit: 3014e922b48696fb9aba4b477ebe1878dd01bb69
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>
Signed-off-by: Olivier Dony <odo@odoo.com>