[FIX] sale_project: fix tasks stat button traceback

steps:
-install sale module.
-create product with product type as course
-Generate a sale order containing the newly created product.
-link the sale order to any project task, and then attempt to view the tasks
 stat button  by clicking. However, encounter an unexpected traceback or error
 message during this action.

issue:
In the sale module quotation view, the traceback is occurring when clicking on
the tasks stat button

fix:
Improved action_view_task method in sale_order model to handle missing sales
order lines with 'service' products. Set default project ID when no suitable
sales order line is found, preventing errors and ensuring smooth functionality.
Refactor involved using conditional expressions for better readability and
maintaining default behavior.

task-3436556

closes odoo/odoo#132981

X-original-commit: 10838145c0981e46221b2cbf65b2c4ce84c3b8c7
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/sale_project/models/sale_order.py

@@ -118,7 +118,7 @@ class SaleOrder(models.Model):
             action['views'] = [(form_view_id, 'form')]
             action['res_id'] = self.tasks_ids.id
         # set default project
-        default_line = next(sol for sol in self.order_line if sol.product_id.detailed_type == 'service')
+        default_line = next((sol for sol in self.order_line if sol.product_id.detailed_type == 'service'), self.env['sale.order.line'])
         default_project_id = default_line.project_id.id or self.project_id.id or self.project_ids[:1].id
 
         action['context'] = {