Delay editor_force_xdnd until the reparent #160

This fixes the option not working correctly when REAPER reparents the
plugin's window to a new FX window.

src/wine-host/editor.h

@@ -268,6 +268,12 @@ class Editor {
      */
     const bool use_coordinate_hack_;
 
+    /**
+     * Whether the `editor_force_dnd` workaround for REAPER should be activated.
+     * See the implementation in `editor.cpp` for more details.
+     */
+    const bool use_force_dnd_;
+
     /**
      * Whether to use XEmbed instead of yabridge's normal window embedded. Wine
      * with XEmbed tends to cause rendering issues, so it's disabled by default.