This commits adds a few digest tips concerning the website
customization and shortcuts in timesheet. It also changes
sequence of one.
Add css selectors to include button inside the digest tips,
matching existing style: no underline, white text on odoo
purple button.
PR #63784
Task-2341722
Related: odoo/enterprise#15478
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
