Update README and docs with Airflow 3 UI screenshots

[tirkarthi]

Apache Airflow version

main (development)

If "Other Airflow 2 version" selected, which one?

No response

What happened?

The UI screenshots and README still have Airflow 2 screenshots. It will be good to update the screenshots and docs page.

https://airflow.apache.org/docs/apache-airflow/stable/ui.html
https://github.com/apache/airflow/blob/main/README.md

What you think should happen instead?

No response

How to reproduce

Visit below links and see Airflow 2 UI screenshots

https://airflow.apache.org/docs/apache-airflow/stable/ui.html
https://github.com/apache/airflow/blob/main/README.md

Operating System

Ubuntu 20.04

Versions of Apache Airflow Providers

No response

Deployment

Virtualenv installation

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[tirkarthi]

cc: @bbovenzi @pierrejeambrun @cmarteepants . I remember a meta ticket for Airflow 3 doc updates but I am not sure if this is covered. Please feel free to close this if it's tracked somewhere else. Thanks.

[cmarteepants]

@tirkarthi there was, but it ended up being a bigger project that I'll prioritize post 3.0. This issue is very welcome, thank you.

[kaxil]

We should get the screenshot updated before the next rc.

cc @bbovenzi @pierrejeambrun