Before this commit, the portal chatter of a project task
on an XXL screen was huge, making form view to shrink
extremely.
This happens because chatter is in `flex-grow: 1`, and assumes
form view also has a specific width to adapt chatter accordingly.
However, in portal chatter, the form view defines a width of 1px
... Therefore giving the room of chatter to take the whole width.
Apparently this rule was defined as a workaround for list view,
which has no chatter. Somehow this rule is affecting form view
in portal, but not in backend.
This commit fixes the issue by removing the `flex-grow: 1` rule
on chatter, so that it always has a fixed size of `530px`.
This is not necessarily the best fix, but at least the most
important content, the form view, is more visible.
closesodoo/odoo#128191
X-original-commit: 15a8200a83ad00760fed0e5c46140c8539ccd8f3
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>