Add account unlock on password reset (#7146)

* added account unlock on password reset

* added account policy option

* added changelog entry

* Added docs entry

* moved changelog entry to correct position

* improved tests to ensure requesting password reset email does not unlock account

* run prettier

src/Options/index.js

@@ -301,6 +301,9 @@ export interface AccountLockoutOptions {
   duration: ?number;
   /* number of failed sign-in attempts that will cause a user account to be locked */
   threshold: ?number;
+  /* Is true if the account lock should be removed after a successful password reset.
+  :DEFAULT: false */
+  unlockOnPasswordReset: ?boolean;
 }
 
 export interface PasswordPolicyOptions {