build: move code into src, add ncc build and test against Asana board

[dooglio]

Summary

Moved code into src, removed node_modules, added @vercel/ncc for packing and will test against asana card.

Closes: this Asana task.

NOTE: don't forget the step of running yarn build before moving on! Since I removed node_modules from the archive, you need to remember to commit the result of the build: dist/index.js.

Test Plan

Run against this Asana board. Make sure milestone is set correctly.

Screenshots/Videos

When attempting to assign the test milestone, I get a failure here:

However, unassigning test and assigning milestone v22.08.11 works:

Further Comments

[federico-po]

Thanks for working into this!

Can you rebase this branch to get the latest changes? I fixed the issue you mention in 6ae35db.

A few considerations for these changes:

1. yarn test is failing rn, probably due to the structure.
2. Can we add a hook or sth to automatically run yarn build? I feel like anyone would forget to run this before committing.
3. Is it worthy to update README.md?

[federico-po]

tACK