[FIX] project: remove chatter glitches in form without sheet tag

Before this commit:

In edit mode, glitching of chatter is visible in project.task's form view
(without sheet tag).

After this commit:

Removed this glinch of chatter and displaying it with full width in the form
(without sheet tag).

Links

PR https://github.com/odoo/odoo/pull/65447


Task- 2411632

closes odoo/odoo#65447

Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>