feat: add `WebviewBuilder::on_new_window` and `WebviewBuilder::on_document_title_changed` (#13876)

* add "new window" and "document title changed" webview handler

* take document title changed handler

* update example, add missing api, change files

* allow creating tauri window for the window.open call

* set size and position, fix linux, example

* enhance document title change

* fix windows deadlock

* wry 0.53

* update wry

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Co-authored-by: Lucas Nogueira <lucas@tauri.app>