Saas 5 report translation fix sle

* Report's translations fixed
* Use of primary views to avoid constantly synchronising website_report and website, now report uses web.layout and once website is installed, it uses website.layout. Note: the template simplified declaration for primary view is not in saas-5, so i used the verbose declaration
* some declaration in website layout are guarded with an "if request" to be able to render the report during the tests, when request is unbound
* minimal page is now a qweb template to allow user to easily adapt the loaded scripts in the pdf