First step to stream QWeb templates: removing the two post processing operations applied on rendered templates. This should slightly speed up the rendering of every page. 1/ Don't remove empty lines after rendering, but fix the root cause of: view inheritancies and QWeb compilation that don't add extra empty lines. 2/ handle page break in the two reports that uses it, rather than processing every view produced. closes odoo/odoo#82244 Related: odoo/enterprise#23328 Signed-off-by: Fabien Pinckaers <fp@odoo.com>