In the website editor, the translations are loaded using
the route 'get_view_translations', which returns the translations
of the templates loaded by the website (t-call calls)
The thing is, report templates use the 'translate_doc' method
to actually load the report, translated in the partner language,
and the templates loaded by this method are not seen by the website,
therefore, when calling 'get_view_translations', those report
templates were just ignored, thus their translations are not loaded.
This rev. injects the templates loaded with translate_doc
when rendering the report into the method 'customize_template_get'
(which is used by 'get_view_translations' to retrieve the loaded templates).
The translations of the reports are therefore now loaded corretly when
hitting the "translate" button in the website editor for reports.
Besides, this rev. has as (good) side-effect to add the template,
in the template selection input when editing using the HTML editor.
opw-620713
Denis Ledoux
Simon Lejeune