Enriching and Extending Thanos UIs with React for Awesome User Experience

So far Thanos has successfully used pieces of old Prometheus UI with some improvements. However, since Prometheus now moved all UI pages to React, it opens new possibilities for Thanos as well. The task is to move all UI to React and enrich them with Thanos features. As mentioned in the proposed idea, I also plan to add UI to every component of Thanos ensuring consistency and improve the experience of using Thanos even more.