Merge branch 'develop' into feature/pad_styleclasses

...bias/playpad/layout/desktop/DesktopMainLayoutFactory.java

...ypad/layout/desktop/DesktopMenuToolbarViewController.java

...laypad/layout/desktop/listener/PadNewContentListener.java

...as/playpad/layout/desktop/pad/DesktopPadDragListener.java

.../de/tobias/playpad/layout/desktop/pad/DesktopPadView.java

.../playpad/layout/desktop/pad/DesktopPadViewController.java

...main/java/de/tobias/playpad/pad/content/AudioContent.java

.../main/java/de/tobias/playpad/view/FileDragOptionView.java

...iewcontroller/option/pad/GeneralPadTabViewController.java

.../viewcontroller/option/pad/PadSettingsViewController.java

...playpad/viewcontroller/option/pad/PathLookupListener.java

...viewcontroller/option/pad/PlayerPadTabViewController.java

...iewcontroller/option/profile/PlayerTabViewController.java

...s/playpad/viewcontroller/settings/FadeViewController.java

PlayWall/src/main/resources/lang/ui_de.properties

PlayWall/src/main/resources/view/option/pad/GeneralTab.fxml

PlayWall/src/main/resources/view/settings/FadeView.fxml

.../resources/view/settings/WarningFeedbackSettingsView.fxml

...java/de/tobias/playpad/design/ModernDesignSizeHelper.java

...Core/src/main/java/de/tobias/playpad/pad/PadSettings.java