Fix mouse handling logic in TextViewSkin.

Previously, pop-up triggers were not handled correctly when the primary mouse button was not pressed. This update ensures that mouse events are managed appropriately by checking the primary button status along with the pop-up trigger.

gemsfx/src/main/java/com/dlsc/gemsfx/skins/TextViewSkin.java

@@ -267,13 +267,16 @@ public void handle(MouseEvent evt) {
         }
 
         private void handleMouseDragged(MouseEvent evt) {
+            if (!evt.isPrimaryButtonDown() || evt.isPopupTrigger()) {
+                return;
+            }
             if (evt.getPickResult().getIntersectedNode() instanceof Text text) {
                 addSelectedIndex(texts.indexOf(text));
             }
         }
 
         private void handleMousePressed(MouseEvent evt) {
-            if (evt.isPopupTrigger()) {
+            if (!evt.isPrimaryButtonDown() || evt.isPopupTrigger()) {
                 return;
             }
             getSkinnable().requestFocus();
@@ -291,7 +294,7 @@ private void handleMousePressed(MouseEvent evt) {
         }
 
         private void handleMouseReleased(MouseEvent evt) {
-            if (evt.isPopupTrigger()) {
+            if (!evt.isPrimaryButtonDown() || evt.isPopupTrigger()) {
                 return;
             }
             firstIndex = null;