Current behavior before PR: You have to find the right menu/view and then take
over the ID stored on the email to find back the record. This is annoying,
painful and error prone.
Desired behavior after PR is merged: By adding a smartbutton the user can
quick-navigate to the related record in a second. This allows for quickly
finding and opening records which is usually handy when debugging things.
Task-2868230
closesodoo/odoo#91228
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>