Mailjet attachments support

[scopsy]

What?

Add support for sending attachments for our Mailjet provider.

Why?

To have the ability to use send attachments.

How?

Based on Notifire IAttachmentOptions interface found here.
And Mailjet method found here

Usage

Based on Notifire IAttachmentOptions interface on the trigger.

[devblin]

Hey, I would like to work on this issue.

[scopsy]

@devblin Sure! Assigned you. Create your branch from the v0.3.0 branch to get the attachment interface

[ComBarnea]

Just in case that helps,

How to send single/multiple and inline with Mailjet

[devblin]

Hey, so for inline-attachments there is no inline-attachment attribute in IEmailOptions interface, so we need to update this https://github.com/notifirehq/notifire/blob/725e5d279ce5ab6f1a85aaefe190db528fda3054/packages/core/src/lib/provider/provider.interface.ts#L11
And, also in given attachment interface, we need to add id attribute as for mailjet-inline-attachments there is optional parameter ContentID
https://github.com/notifirehq/notifire/blob/725e5d279ce5ab6f1a85aaefe190db528fda3054/packages/core/src/lib/template/template.interface.ts#L43

[scopsy]

@devblin for now let's leave the inline attachments out of the scope of this issue and just focus on regular attachments.