[Jmix rent-your-stuff] #42 Jmix 2 migration - UI test migration

In our fifth video, we explore adapting UI integration tests for applications migrating from Vaadin 8 to Vaadin 24, with a focus on tests for regenerated CRUD UIs. We briefly revisit previous testing efforts before introducing a flexible side-by-side approach for migrating tests. The video showcases the use of helper classes for efficient test adaptation to Vaadin 24's API changes, including a practical test adaptation for the Product Category CRUD UI. We discuss overcoming migration challenges and conclude with key takeaways and next steps for a smooth transition in UI test migration. This guide is essential for developers looking to update their UI integration tests with Vaadin 24.