[FIX] project: fix task satisfaction survey email template

Steps:
- Install project module
- Activate customer rating from settings
- Create new project with out company
- Add stages, then in final stage set in rating  email template
  to 'Project: Task Rating Request'
- Create a task and move the task to that final stage then
- Check the emails in settings, the subject line is look like
  ': Satisfaction Survey'.

Issue:
- When there is no company set on the project, on that time  company name
  is missing in subject line.

Cause:
- In task satisfaction survey email template only set the company
  name based on the project only.

Fix:
- By adding the current user's company name to the template subject line,
  the problem will be solved.

task-3626702

closes odoo/odoo#153103

X-original-commit: 8cf35cb51d97c0259e98765f899e3f2f8b98f52e
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/project/data/mail_template_data.xml

@@ -30,7 +30,7 @@
             <field name="name">Project: Task Rating Request</field>
             <field name="model_id" ref="project.model_project_task"/>
             <field name="active" eval="False"/>
-            <field name="subject">{{ object.project_id.company_id.name }}: Satisfaction Survey</field>
+            <field name="subject">{{ object.project_id.company_id.name or user.env.company.name }}: Satisfaction Survey</field>
             <field name="email_from">{{ (object._rating_get_operator().email_formatted if object._rating_get_operator() else user.email_formatted) }}</field>
             <field name="partner_to" >{{ object._rating_get_partner().id }}</field>
             <field name="description">Set this template on a project stage to request feedback from your customers. Enable the "customer ratings" feature on the project</field>