Content refresh

[ViralBShah]

Some of the content on the front page of the website is a few years old. Things to refresh:

• Refresh Nutshell section. juliac is a big one, but perhaps needs to wait for 1.12
• In Ecosystem we demonstrate on landing page and recommended packages (some are replaced with newer ones, some are unmaintained and have alternatives, etc.)
• Update youtube videos to JuliaCon 2024
• Clean up "Talk to Us" to have more active communities rather than a full laundry list

[yashithalrao]

I'd like to work on this, please assign me this issue.

[ViralBShah]

We don't do assignments. But please open a PR.