* feat: add "forget password" [front & backend]
Signed-off-by: Weihao <1340908470@qq.com>
* fix: verification code can be sent even if no mobile phone or email is selected
refactor: forgetPassword -> forget; GetEmailAndPhoneByUsername -> GetEmailAndPhone; remove useless note
Signed-off-by: Weihao <1340908470@qq.com>