data (modify|merge|remove) suggests player selectors

[anonymous123-code]

After typing data modify player selectors(@r, @p, @a) are suggested, but the command will result in an error.
(Bugs of this type will propably wont be fixed without bigger parsing changes (eg. execute as @p run data merge @s))

Thank you for your great work! Im feeling quite bad reporting all those bugs, I will try to get into fixing them myself...

[jan00bl]

You don't need to feel bad reporting them. It really helps, because I can't test everything, so thank you ^^
It would be really cool, if you could help because at the moment I'm pretty busy with my other projects and especially with university stuff (because of that the autocomplete is still stuck in 20w51a). I added comments for every method in the provider.js, so it should be "easier" to get started with the code. If you have question feel free to message me on twitter or somewhere here on github