Add playwright routes support

[Jonathan-384481]

This pull request adds routes to pest-plugin-browser with minimal changes to the current code. Use with

visit('/')->withRoute('**/message', fn (PlaywrightRoute $route) => $route->continue());

or

$page->route('**/*', fn (PlaywrightRoute $route) => $route->abort());

Currently supported methods are continue, abort and fulfill

[KhyFee]

Useful addition — withRoute / route covering continue/abort/fulfill matches the Playwright surface people reach for first.

Notes from the diff:

1. setNetworkInterceptionPatterns with a glob is good; confirm overlapping patterns / multiple withRoute calls append rather than replace (tests only show a single pattern).
2. PHPDoc says callable(Route): bool but fulfill/abort examples look side-effecting — clarify return-value expectations (ignored vs must return true).
3. Route::reset() between tests is important; worth asserting in a test that handlers do not leak across visit() calls.
4. Naming PlaywrightRoute in userland vs internal Route is fine; a short README snippet with the three verbs would help discoverability.

Happy to see this land once multi-route + reset behavior is confirmed.