feat: send individuals emails with pluggable component

[johnvente]

Description

This feature will allow sending emails to expected emails of students in the course using pluggable component

Demo

Plugin loaded:

How to test it

If you are using devstack

1. Go to workspace and clone this branch

cd ~/workspace && git remote add fork [email protected]:eduNEXT/frontend-app-communications.git

git fetch fork jv/feat-send-indivudial-email-pluggable && git checkout jv/feat-send-indivudial-email-pluggable

2. Go to the mfe repository, use node version in the repo and install dependencies

cd ~/workspace/frontend-app-communications && nvm use && npm install

3. inside frontend-app-communications run

npm run start

4. Go to http://localhost:1984/courses/course-v1:edX+DemoX+Demo_Course/bulk_email Or
   http://localhost:1984/courses/{{id_course}}/bulk_email

5. Select the checkbox called "Individual learners"

6. In the input with this label "Add individual learner" search an student with email/name/username and click on the user that you wish

7. Fill out the fields Subject and Body

[codecov-commenter]

Codecov Report

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[AuraAlba]

Suggested change

	<Form.Label className="mt-3" data-testid="learners-email-input-label">{intl.formatMessage(messages.individualEmailsLabelLearnersInputLabel)}</Form.Label>
	<Form.Label className="mt-3" data-testid="learners-email-input-label">
	{intl.formatMessage(messages.individualEmailsLabelLearnersInputLabel)}
	</Form.Label>

[AuraAlba]

In the case the variables doesn't exist the value should be an empty string, not the variable

[AuraAlba]

Suggested change

	<Form.Label className="col-12" data-testid="learners-email-list-label">{intl.formatMessage(messages.individualEmailsLabelLearnersListLabel)}</Form.Label>
	<Form.Label className="col-12" data-testid="learners-email-list-label">
	{intl.formatMessage(messages.individualEmailsLabelLearnersListLabel)}
	</Form.Label>

[AuraAlba]

Manage colors as variables. If they are be used in other components, make a separate file

[BryanttV]

Hi @johnvente, I tested the changes, and work correctly! 💯