Fix T16 companion inport warning (#6965)

* Add JumperTX wartning also when reading from radio

* Reuse

* Reword

* Cosmetics

* Cosmetics

companion/src/helpers.cpp

@@ -435,6 +435,23 @@ static bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
   return s1.toLower() < s2.toLower();
 }
 
+bool displayT16ImportWarning()
+{
+  QMessageBox msgBox;
+  msgBox.setWindowTitle(QObject::tr("WARNING"));
+  msgBox.setText(QObject::tr("<p>Importing JumperTX data into OpenTX 2.3 is <b>not supported and dangerous.</b></p> \
+                      <p>It is unfortunately not possible for us to differentiate JumperTX data from legitimate FrSky X10 data, but <b>You should only continue here if the file you opened comes from a real FrSky X10.</b></p> \
+                      <p>Do you really want to continue?</p>"));
+  msgBox.setIcon(QMessageBox::Warning);
+  msgBox.addButton(QMessageBox::No);
+  msgBox.addButton(QMessageBox::Yes);
+  msgBox.setDefaultButton(QMessageBox::No);
+
+  if (msgBox.exec() == QMessageBox::No)
+    return false;
+  return true;
+}
+
 void Helpers::populateFileComboBox(QComboBox * b, const QSet<QString> & set, const QString & current)
 {
   b->clear();