This Improves the frontend performance with stale while
revalidate pattern.
There are noticeable performance problems in the frontend that
needed addressing. While implementing the stale-while-revalidate
pattern to display cached responses while re-fetching up-to-date
data in the background, in the same vein we used the opportunity
to remove legacy code involving redux as much as possible,
cleaned up many components and converted them to functional
react components.
Co-authored-by: Sebastian Sdorra <sebastian.sdorra@cloudogu.com>
Co-authored-by: Eduard Heimbuch <eduard.heimbuch@cloudogu.com>
