Improve the contributor guide — perhaps a video showing the environment setup?

[anna-geller]

Description

We keep seeing external contributors struggling to set up the environment.

Example:

Maybe we could improve the contributor guide documentation https://kestra.io/docs/getting-started/contributing and perhaps add a video showing the environment setup

[MilosPaunovic]

Hey @shrutimantri and @wrussell1999, could we try to improve this section as the issue still persist? 🙏🏻

It would be specially useful to have a video guide on how to run fronted without building the BE, from this section
https://kestra.io/docs/getting-started/contributing#setup-kestra-frontend-without-building-the-backend-from-the-source-code.