SC-83 Invite evaluators to start evaluation tasks

[edwin-jebaraj]

Changes in this PR

1. app/controllers/support/cases/email_evaluators_controller.rb - Added new controller
2. app/models/email/template_parser.rb - Added new parse variable
3. app/views/support/cases/email_evaluators/_document_list.html.erb - Added new view file to list uploaded documents
4. app/views/support/cases/email_evaluators/_email_list.html.erb - Added new view file to list evaluators
5. app/views/support/cases/email_evaluators/_form.html.erb - Added new form file
6. app/views/support/cases/email_evaluators/_form_template.html.erb - Added new default template file
7. app/views/support/cases/email_evaluators/edit.html.erb - Added new view file
8. app/views/support/cases/show/_tasklist.html.erb - Updated email evaluator link in task list
9. config/locales/en.yml - added new language variable
10. config/routes.rb - Added new route for email_evaluators
11. db/migrate/20241211171744_add_sent_email_to_evaluators_to_case.rb - Added new migration file
12. spec/features/support/agent_can_email_to_evaluators_spec.rb - Added new spec file for testing

Screen-shots or screen-capture of UI changes

[github-actions]

Test coverage

Line: 87.16%
Branch: 76.97%

[github-actions]

Test coverage

Line: 87.15%
Branch: 76.94%

[github-actions]

Test coverage

Line: 87.16%
Branch: 76.99%

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud