feat(email): Create verifyAccountChange email template for MFA guard
commit 226d337812f315cbcfec0d5329bd72e0f67134fb Author: MagentaManifold <17zhaomingyuan@gmail.com> Date: Thu Aug 21 17:58:54 2025 -0400 feat(email): Create verifyAccountChange email template for MFA guard Because: * We need to send emails to verify a change in account settings via code This commit: * creates verifyAccountChange email template Closes #FXA-12221