Merge branch '553-change-arrows-for-transcription-starting-sites' into 'devel_12.2.x'

drawing of the transcription site is properly positioned

See merge request !621

converter-graphics/src/main/java/lcsb/mapviewer/converter/graphics/bioEntity/element/species/SpeciesConverter.java

@@ -675,7 +675,9 @@ public abstract class SpeciesConverter<T extends Species> extends ElementConvert
     double y = transcriptionSite.getPosition().getY();
     double x = transcriptionSite.getPosition().getX();
     PolylineData line = new PolylineData();
-    x += transcriptionSite.getWidth() / 2;
+    if (transcriptionSite.getDirection().equals("RIGHT")) {
+      x += transcriptionSite.getWidth();
+    }
     line.addPoint(new Point2D.Double(x, y));
 
     y -= DEFAULT_MODIFICATION_DIAMETER;