Purpose
=======
Change the logic of the KPI "Day-1" to "Last 24 hours", so new freshly
created data in the free trial are included in the statistics (same for
last week and last month logic). This requires to change from date-based
computation to datetime-based.
Change the URL of the "connect" button from "/web/login" to the root
URL (so the user is not stuck if he didn't activate yet his database).
Task ID-2359406
closesodoo/odoo#60166
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>