The Role of JavaScript Frameworks in Progressive Web Apps (PWAs)

What role do JavaScript frameworks like React, Angular, and Vue play in the development of Progressive Web Apps (PWAs)? Discuss how service workers, push notifications, and offline caching work in conjunction with these frameworks to create fast, reliable, and engaging user experiences. How can developers ensure that their PWAs are optimized for both mobile and desktop environments, and what are the common challenges in developing PWAs? Additionally, what best practices should be followed when implementing background sync and web app manifests to provide a native-like experience for users?