feat: implement mutability cutoff for rentals

addresses #869cca42x

src/Twig/AppExtension.php

@@ -38,6 +38,7 @@ class AppExtension extends AbstractExtension
             new TwigFunction('qa_attribute', [AppRuntime::class, 'renderQaAttribute'], ['is_safe' => ['html']]),
             new TwigFunction('is_static_text', [AppRuntime::class, 'isStaticText']),
             new TwigFunction('is_hidden', [AppRuntime::class, 'isHidden']),
+            new TwigFunction('is_travel_start_cutoff_reached', [AppRuntime::class, 'isTravelStartCutoffReached']),
             new TwigFunction('collect_invalid_field_labels', [AppRuntime::class, 'collectInvalidFieldLabels']),
             new TwigFunction('booking_theme', [AppRuntime::class, 'getBookingTheme']),
             new TwigFunction('gtm_id', [AppRuntime::class, 'getGtmId']),