Gate the new resizing behavior behind new option

This interferes with resizing plugins using resize handles, and since it
only helps with two buggy plugins this seems like the best solution
here.

src/wine-host/editor.h

@@ -265,11 +265,18 @@ class Editor {
      */
     void run_timer_proc();
 
+    /**
+     * Whether to reposition `win32_window` to (0, 0) every time the window
+     * resizes. This can help with buggy plugins that use the (top level)
+     * window's screen coordinates when drawing their GUI.
+     */
+    const bool use_coordinate_hack = false;
+
     /**
      * 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.
      */
-    const bool use_xembed;
+    const bool use_xembed = false;
 
    private:
     /**