update dart docs to current dart (3.13)

Open

#2,091 opened on Oct 26, 2023 0 comments 0 reactions 0 assignees View on GitHub

docs/update help wanted

Description

# Bug report
the currently available dart docs are for dart 2 which is over a year old...

## OS information

NixOS
## Steps to reproduce
open up the documentation on devdocs.io for dart and see that it's for dart 2.

## Possible fix

update the docs

This issue has not been assessed yet.