* fix: user.id assignment in jwtStrategy.js
* refactor(sendEmail): pass params as object, await email sending to propogate errors and restrict registration flow
* fix(Conversations): handle missing updatedAt field
* refactor: use `processDeleteRequest` when deleting user account for user file deletion
* refactor: delete orphaned files when deleting user account
* fix: remove unnecessary 404 status code in server/index.js