restructuring, working on password reset email

next steps:
- create reset url and add it to the translation fill map
- implement message translation
- implement otp validation and login

legacy/src/main/java/de/srsoftware/umbrella/legacy/LegacyApi.java

@@ -21,8 +21,8 @@ import de.srsoftware.tools.SessionToken;
 import de.srsoftware.umbrella.core.BaseHandler;
 import de.srsoftware.umbrella.core.Token;
 import de.srsoftware.umbrella.core.UmbrellaException;
+import de.srsoftware.umbrella.core.model.UmbrellaUser;
 import de.srsoftware.umbrella.user.model.Session;
-import de.srsoftware.umbrella.user.model.UmbrellaUser;
 import de.srsoftware.umbrella.user.sqlite.SqliteDB;
 import java.io.IOException;
 import java.time.Instant;