[Generation] Add possibility to override module email templates in the custom theme

[bohdan-harniuk]

Is your feature request related to a problem? Please describe.

We should be able to override email template in the custom theme.

Describe the solution you'd like (*)

Add a new action similar to the Override this file in a project theme. This action should override email templates in custom themes. Read documentation before starting development: https://developer.adobe.com/commerce/frontend-core/guide/templates/email/.

Additional context

Mainline branch: 5.0.0-develop

[m2-assistant]

Hi @bohdan-harniuk. Thank you for your report.
To speed up processing of this issue, make sure that you provided sufficient information.

Add a comment to assign the issue: @magento I am working on this

---

• Join Magento Community Engineering Slack and ask your questions in #github channel.

[anzin]

@magento I am working on this