Fill in missing live p5js documentation

When I got rid of the local completer the bug with the prefix functions went away.
That means I could re-enable all documentatio now.

Also fixed a non critical js error that would cause the autosuggest to not close when clicked.

Test Plan:
- Try out the new live documentaiton and made sure it autosuggested properly.
- Try clicking autosuggest parameter info and make sure it goes away.

Auditors: john