Mention Podman support on website

[rm3l]

/area documentation
/area odo-on-podman

/kind feature

What mistake did you find / what is missing in the documentation?

There is currently no occurrence of Podman on the website homepage.
With Podman support out of the experimental mode, it could be appealing to mention such support on the home page.
Currently, we are just mentioning Kubernetes and OpenShift.

The demo animation should also be updated to mention Podman.

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Grooming (2023-06-01)

/retitle Mention Podman support on website

Home page

• Update Home Page demo: showcase flow from Podman to cluster #6858
• Mentions of Podman on the home page #6859

Quickstart Guides

• Update Quickstart Guides with Podman support #6860
  • Explain the differences between Podman and cluster
  • Add a note about the minimum odo version required for Podman support
  • Add Podman as a new tab in the platform selector tab

Advanced usage

• Advanced Usage: Flow from Podman to cluster #6861 (moved to another epic: [Epic] Use odo with Podman (without Kubernetes/OpenShift cluster) [stage 4] #6991)

Github repo

• Update README and project description with mention of Podman support #6862