Merge pull request #23448 from edx/ndalfonso/AA-38-calendar-sync-email-template

...on/templates/student/edx_ace/calendarsync/email/body.html

common/templates/student/edx_ace/calendarsync/email/body.txt

...emplates/student/edx_ace/calendarsync/email/from_name.txt

...on/templates/student/edx_ace/calendarsync/email/head.html

.../templates/student/edx_ace/calendarsync/email/subject.txt

lms/envs/common.py

openedx/features/calendar_sync/message_types.py

openedx/features/calendar_sync/tasks.py

openedx/features/calendar_sync/tests/test_tasks.py

openedx/features/calendar_sync/tests/test_views.py

openedx/features/calendar_sync/views/management.py

openedx/features/course_experience/views/course_dates.py