Hi Sri,
if you want to show the my approval widget to every user in service portal there is role is defined in line 128 in your widget server script you can comment the role so all users can see the my approval widget.
2. As chuck replied you can check the roles and you can r emove the roles from their
data.ids = ids;
data.approvals = approvals;
data.showApprovals = true;//gs.getUser().hasRole('approver_user');
// for pagination
Note: please mark my answer helpful or correct so it would not wipped out from the community
