enhancement: Add FluxCD community chart for automatic integration between tenant cluster and GitOps repo

[gecube]

Hi!

As a DevOps engineer I want not also to spin up tenant clusters, but automatically assign them to some already precreated gitops repo. Or even more - setup multiple namespaces into main cluster and bind them to a separate git repos. So I want to have a dedicated application which will cover this functions is come clean and nice way and provide easy to use UI. To achieve this goal I am proposing to add new application to the dashboard which will in it's turn install https://github.com/fluxcd-community/helm-charts/tree/main/charts/flux2-sync chart.