Make email_from & email_to methods public

This is useful when generating emails in a background job, as it allows
keeping these configurable from within the Rodauth configuration.

lib/rodauth/features/email_base.rb

@@ -23,6 +23,14 @@ def post_configure
       require 'mail' if require_mail?
     end
 
+    def email_from
+      "webmaster@#{domain}"
+    end
+
+    def email_to
+      account[login_column]
+    end
+
     private
 
     def send_email(email)
@@ -42,14 +50,6 @@ def create_email_to(to, subject, body)
       m
     end
 
-    def email_from
-      "webmaster@#{domain}"
-    end
-
-    def email_to
-      account[login_column]
-    end
-
     def token_link(route, param, key)
       route_url(route, param => token_param_value(key))
     end