chore: update controller and web-app to 1.10.0-rc.0

[DnPlas]

This commit updates the charms in this repository to the 1.10.0-rc.0 version, which includes:

• Using upstream's latest 1.10.0-rc.0 image for both charms
• Updating the list of images for Jupyter, Rstudio and VSCode from the dropdown menu
• Adding a METRICS environment variable to the web-app charm to match upstream

See kubeflow/manifests#2995 for reference on the changes.

[orfeas-k]

• Should we use kf/kf rc.1? (left a comment about why we should do it).
• What about the following change:

348,351c349,354
>           - limitsKey: "habana.ai/gaudi"
>             uiName: "Intel Gaudi"
380c383

[orfeas-k]

Since those images aren't published (docker pull fails), should we go straight to kf/kf rc.1 now that it's published?

[orfeas-k]

I think instead of just enabling metrics like that, we should enable this in a separate feature PR alongside a dashboard and metrics. This change should be identical to what we did for kubeflow-volumes in canonical/kubeflow-volumes-operator#176. In that case we also used a dev branch, but this is probably redundant since we 're not breaking something.

[DnPlas]

• Should we use kf/kf rc.1? (left a comment about why we should do it).

  • What about the following change:

348,351c349,354
>           - limitsKey: "habana.ai/gaudi"
>             uiName: "Intel Gaudi"
380c383

Good catch! The change was added in 1.9.1, hence the miss. I'll add it as part of this PR.

[DnPlas]

Closing in favour of #434.

The discussion about the METRICS env variable will be held offline as there are a couple things to check.