[FIX] web : change the white space of button-box to nowrap

Steps to reproduce the issue:

1. Go to any of the contacts with partner ledger option.
2. Make the browser window small and observe the text in the partner ledger button box.

Current Behaviour:
The text in the button box does not get ellipsized, rather stays the same and may get out of the button box if the box becomes smaller

Desired Behaviour:
The text in the button should be ellipsized

OPW-3266235

closes odoo/odoo#121167

X-original-commit: ec642f9caba7c6a7a21d9e65ffa0e305ff06678d
Related: odoo/enterprise#40948
Signed-off-by: Adrien Dieudonné (adr) <adr@odoo.com>
Signed-off-by: Pierre Paridans (app) <app@odoo.com>

addons/web/static/src/views/form/button_box/button_box.scss

@@ -54,7 +54,6 @@
         // Some buttons only display text without using StatInfo template
         > span {
             @include o-text-overflow(block);
-            white-space: normal; // text on several lines if needed
         }
 
         .o_stat_info, > span, .o_field_statinfo {