Follow caret fix (#945)

Author: Jugen

richtextfx/src/main/java/org/fxmisc/richtext/GenericStyledArea.java

@@ -1729,7 +1729,7 @@ public void dispose() {
     private void followCaret() {
         int parIdx = getCurrentParagraph();
         Cell<Paragraph<PS, SEG, S>, ParagraphBox<PS, SEG, S>> cell = virtualFlow.getCell(parIdx);
-        Bounds caretBounds = cell.getNode().getCaretBounds(caretSelectionBind.getUnderlyingCaret());
+        Bounds caretBounds = caretSelectionBind.getUnderlyingCaret().getLayoutBounds();
         double graphicWidth = cell.getNode().getGraphicPrefWidth();
         Bounds region = extendLeft(caretBounds, graphicWidth);
         double scrollX = virtualFlow.getEstimatedScrollX();