fix gui issue

[steelec]

[start] button is greyed out if buttons are not clicked through in the correct order

spft-java/src/main/java/com/github/neuralabc/spft/ui/ControlContent.java

Line 191 in 2f64fae

} else if (!TriggerSender.DISABLED.equals(triggerDevice.getSelectedItem())) {

[steelec]

fixed in #8