Do not locate DeskBar window by its name

The name changes when translations are enabled. Use the index instead.

Fixes #8982.

Thanks to X512 for catching the problem!

Change-Id: I3c4e943f8476e46e7378a50e83a7758f694a8dc0
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2606
Reviewed-by: Axel Dörfler <[email protected]>
Reviewed-by: waddlesplash <[email protected]>

src/kits/interface/Deskbar.cpp

@@ -43,7 +43,7 @@ get_deskbar_frame(BRect* frame)
 
 	BMessage request(B_GET_PROPERTY);
 	request.AddSpecifier("Frame");
-	request.AddSpecifier("Window", "Deskbar");
+	request.AddSpecifier("Window", (int32)0);
 
 	BMessage reply;
 	result = deskbar.SendMessage(&request, &reply);