PLT-2971 Added email footer for address (#3319)

* Added email footer for address

* added default

* Update html.go

* Changed according to PM

config/config.json

@@ -87,6 +87,7 @@
         "RequireEmailVerification": false,
         "FeedbackName": "",
         "FeedbackEmail": "",
+        "FeedbackOrganization": "",
         "SMTPUsername": "",
         "SMTPPassword": "",
         "SMTPServer": "",