Currently, when a db is loaded without demo data, or that a user has no
task assigned and no personnal stage, the view 'My tasks' is empty. The
purpose of this commit is to assign default personnal stage to a user in
these case to ease the understanding of new user of what the view can be
used for.
This commit :
- add default personnal stage to user the first time he clicks on the
'My tasks' menu if the user has no personnal stage and no task are assigned
to him.
task-3047496
closesodoo/odoo#105940
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>