overlay: Add embmsOverlay rro to translate permission

Description

embms is prebuilt app and does not have translations for its permission in any language so as to have them translated create an overlay so that translations for it could be added

Screenshots

Technical details

Tests

<Explain here the test scenarios that have been done for the feature, including corner cases.>

Issues

e/backlog#5531 (closed)

10 commandments of code reviews

<Keep the link above in the merge request description to remind the 10 commandments to the reviewers.>

👪 ❤ https://gitlab.e.foundation/internal/wiki/-/wikis/development/code-review