feat: send email even if user and client is not the same

[remisultan]

:id: Reference related issue.

relates to: AM-2881 public bug: https://github.com/gravitee-io/issues/issues/9624

:pencil2: A description of the changes proposed in the pull request

:memo: Test scenarios

:computer: Add screenshots for UI

:books: Any other comments that will help with documentation

:man: :woman:@mentions of the person or team responsible for reviewing proposed changes

This is a nice example: https://github.com/gravitee-io/gravitee-access-management/pull/1822

[sonarqubecloud[bot]]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
96.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[leleueri]

Close this PR as another one has been open https://github.com/gravitee-io/gravitee-access-management/pull/4109.