YouTube Navigation Overhaul troch ThZN

This add-on provides a universal solution for userscripts that weren't designed to handle YouTube's SPA navigation. While userscripts can be written to work with YouTube's dynamic content loading, many existing scripts fail to reapply customizations when navigating between pages. YouTube uses a Single Page Application (SPA) architecture that doesn't perform traditional page reloads when navigating between videos. Instead, it dynamically updates content using AJAX. This prevents userscripts from executing properly since they typically run on page load, forcing users to manually refresh to reapply customizations. This add-on solves the problem by forcing YouTube to use traditional page loads, making any userscript work without modification.