Multiple helm repos

[AlinaGoaga]

Closes #1177

What changed?

• Previously only one HelmRepository object, weaveworks-charts, could be defined pointing to a single helm chart repository for profile installation. Now users will be able to configure multiple helm repositories to be used and available for profile installation. If no helm repos are set up, we default to weaveworks-charts.
• The required profiles section in template can also now specify a sourceRef.

How did you validate the change?
Updated existing tests to reflect changes.

Documentation Changes
Docs update PR

[foot]

🔥 !

• the filter box seems to get cleared if you type a filter in there like podinfo
• clicking the select al checkbox when you have a filter still seems to select everything
• we only seem to get a single podinfo helmrelease in the preview etc even if you select all 4 of them, I think on the BE would should perhaps start including the name of the source in the filename.. and the helmrelease.name too? 🤔

Love seeing the namespace in the profiles table source column, 🙌

[foot]

we only seem to get a single podinfo helmrelease in the preview etc even if you select all 4 of them, I think on the BE would should perhaps start including the name of the source in the filename.. and the helmrelease.name too? 🤔

Added a constraint for this in the BE, throws an error now

Some things I think we should address first:

• Typing in field values is very slow now
• We load all the helm charts from all the helm repos on page load, need to avoid that as it could be a lot.
• HelmRepositories in other namespaces like monitoring or podinfo still have these namespaces when being copied to the new cluster, but these namespaces don't exist. I think we limit the helmrepos we show to just flux-system for now? Then can relax this constraint in the future too.

[foot]

On pausa for now.