#235 - prepared second settings ui, cleaned SettingsController, updated Settings

...dlocker8/budgetmasterclient/ui/controller/Controller.java

...erclient/ui/controller/LocalServerSettingsController.java

...rclient/ui/controller/OnlineServerSettingsController.java

.../budgetmasterclient/ui/controller/SettingsController.java

...deadlocker8/budgetmasterclient/utils/DatabaseDeleter.java

...eadlocker8/budgetmasterclient/utils/DatabaseExporter.java

...eadlocker8/budgetmasterclient/utils/DatabaseImporter.java

...rces/de/deadlocker8/budgetmaster/languages/_de.properties

...rces/de/deadlocker8/budgetmaster/languages/_en.properties

...rces/de/deadlocker8/budgetmaster/ui/fxml/SettingsTab.fxml

...dlocker8/budgetmaster/ui/fxml/SettingsTabLocalServer.fxml

...locker8/budgetmaster/ui/fxml/SettingsTabOnlineServer.fxml

...in/java/de/deadlocker8/budgetmaster/logic/ServerType.java

...main/java/de/deadlocker8/budgetmaster/logic/Settings.java

.../java/de/deadlocker8/budgetmaster/logic/utils/Colors.java