Fix an issue when changing pages. the cache thought it was already showing, but it wasn't

src/main.go

@@ -90,6 +90,7 @@ func setup(client *streamdeck.Client) {
 		contexts[event.Context] = struct{}{}
 
 		newSettings, err := volume.GetVolumeSettings()
+		_currentSettings = &volume.VolumeSettings{}
 
 		if err != nil {
 			return err