fix minWidth and minHeight

src/main/java/org/cryptomator/ui/error/ErrorComponent.java

@@ -20,8 +20,8 @@ public interface ErrorComponent {
 	default Stage show() {
 		Stage stage = window();
 		stage.setScene(scene());
-		stage.setMinWidth(420);
-		stage.setMinHeight(300);
+		stage.setMinWidth(450);
+		stage.setMinHeight(450);
 		stage.show();
 		return stage;
 	}