vcmi: use MODAL by default

Convert only some objects to AUTO, need futher testing
than no non-adventure objects will not use AUTO or INFO

server/CGameHandler.cpp

@@ -6046,6 +6046,7 @@ bool CGameHandler::dig(const CGHeroInstance *h)
 	sendAndApply(&smp);
 
 	InfoWindow iw;
+	iw.type = EInfoWindowMode::AUTO;
 	iw.player = h->tempOwner;
 	if (gs->map->grailPos == h->visitablePos())
 	{