Companion enhancements for checklist editor, model print and compare (2 3 branch) (#6434)

* Model print and compare include GFs enhancement

* Model print and compare include checklist contents

* Add missing brackets and code tidy up

* Print message if cannot open or read checklist file

* Missing GV label translation
Move some checklist code to helpers

* Refactor to use helpers and add cursor position

* Move improved version of removeAccents to helpers and apply to checklist

* Force fixed width font for edit window

companion/src/modeledit/setup.cpp

@@ -1355,6 +1355,6 @@ void SetupPanel::onBeepCenterToggled(bool checked)
 
 void SetupPanel::on_editText_clicked()
 {
-  ChecklistDialog *g = new ChecklistDialog(this, ui->name->text());
+  ChecklistDialog *g = new ChecklistDialog(this, model);
   g->exec();
 }