Feature: Reuse tokens if they haven't expired (#7017)

* Reuse tokens if they haven't expired

* Fix failing tests

* Update UserController.js

* Update tests

* Tests for invalid config

* restart tests

src/Routers/UsersRouter.js

@@ -308,6 +308,7 @@ export class UsersRouter extends ClassesRouter {
         appName: req.config.appName,
         publicServerURL: req.config.publicServerURL,
         emailVerifyTokenValidityDuration: req.config.emailVerifyTokenValidityDuration,
+        emailVerifyTokenReuseIfValid: req.config.emailVerifyTokenReuseIfValid,
       });
     } catch (e) {
       if (typeof e === 'string') {