fix: remove extra scopes for murena oidc

for OIDC login, the accessToken length is dependent on the requested
    scopes. Which cause /e/OS mail is not working as expected for long
    accessToken (mailServer has a barier on perline length of request).
    Removing not required scopes resolve this issue.

issue: https://gitlab.e.foundation/e/os/backlog/-/issues/2497