[who-uses-dart] Refresh and update community showcase examples

[conooi]

Page URL

https://dart.dev/community/who-uses-dart

Page source

No response

Describe the problem

The "Who uses Dart" community page currently lists several showcase examples and quotes that are several years old like older Flutter showcase quotes and legacy web apps. The list of companies and applications would benefit from a broader audit and refresh to highlight modern Dart adoption across Flutter, server-side Dart, and CLI tooling.

Expected fix

No response

Additional context

No response

I would like to fix this problem.

• I will try and fix this problem on dart.dev.