Sending Emails asynchronously using Celery

[VarshiniAdurti28]

Description

Emails can now be sent asynchronously using Celery.
A service for redis and celery has been added to the dev docker compose file.

Fixes # (issue)

Dependencies

List any dependencies that are required for this change.

• celery
• redis

Type of Change

What types of changes does your code introduce?
Put an x in the boxes that apply

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

This has been tested using a dummy views file in corpus directory itself. We already had send_email in utils.py which was the one being used till now.

• A task has been created using the same. (tasks.py)

sample_email.html is used for the template_path.

---

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[sentry]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: corpus/corpus/decorators.py

Function	Unhandled Issue
wrapper	TypeError: report() got an unexpected keyword argument 'can_view_current_envision ' ... Event Count: 83
wrapper	ModuleConfiguration.DoesNotExist: ModuleConfiguration matching query does not exist. ... Event Count: 2
wrapper	Report.DoesNotExist: Report matching query does not exist. /virtual_expo/preview/{r... Event Count: 1

---

_{Did you find this useful? React with a 👍 or 👎}