Added the choice between formal and informal address to the whole app (#1200)

app/MindWork AI Studio/Tools/Event.cs

@@ -33,6 +33,11 @@ public enum Event
     /// </summary>
     COLOR_THEME_CHANGED,
 
+    /// <summary>
+    /// Notifies receivers that the form of address changed, so that the texts of TA() show in the new form.
+    /// </summary>
+    ADDRESS_FORM_CHANGED,
+
     /// <summary>
     /// Requests startup initialization of the plugin system.
     /// </summary>