HSB-439 feature: invite link with SMTP optional (#4078)

* feat: env variable added in infra-config for smtp enable status

* feat: event emitter added

* feat: added advance mailer configurations from infra config

* test: fix test cases

* feat: added query to see is smtp enabled or not

* feat: email auth provider disabled on smtp disable

* chore: restrict on update directly instead of dedicated mutation

* fix: feedback resolved

* chore: modify mailer module

* chore: error handle in mailer functions

* chore: removed unused imports

* chore: remove event-emit

* chore: update env example

* test: fix broken test cases

* chore: feedback resolved

* chore: isSMTPEnabled moved to infra config resolver

* fix: email can not reenable if smtp not enabled

packages/hoppscotch-backend/src/user-request/user-request.service.spec.ts

@@ -42,6 +42,7 @@ const user: AuthUser = {
   isAdmin: false,
   refreshToken: null,
   lastLoggedOn: new Date(),
+  lastActiveOn: new Date(),
   createdOn: new Date(),
   currentGQLSession: null,
   currentRESTSession: null,