Simpler examples without atlassian dependencies

[buzzie-bee]

This is a suggestion to implement some simpler examples without Atlassian dependencies.

The documentation for this project is very good, but the examples are all quite large with heavy dependencies on Atlassian components and tools.

The List Example is a great starting point for what I'd like to build, but it's overwhelming to try and recreate locally by copy pasting the example code.

It might be possible for prospective users to dig into the Atlassian code base to figure out how to replicate for example the Box component with plain jsx and their own styling, but with how many dependencies even the Box component is a major effort to try to understand what's going on.

It would very helpful to adopters of this package if we could have some versions of the examples using plain JSX elements and either plain css files or tailwind so it's easier to understand how to recreate the examples locally.

Ideally the examples should only have imports from React and pragmatic-drag-and-drop, and if you copy pasted them into a project with those dependencies installed it should just work.