feat: add "first" scope to get_player_scores

[minisbett]

Describe your changes

Adds the "first" scope for first-place scores to the API v1, as the API v2 does not contain any implementation for this kind of stuff yet.

Checklist

• [x] I've manually tested my code

[minisbett]

ignoring the fact i see this becoming SHIT slow on maps with many scores, this needs consideration/ignoration for restricted users as their first places should not count

~~wait didnt I already add that to the query~~ nvm