Feature/short travel staff teleport

[DoctorNefario]

Description

The short travel feature now makes use of vanilla methods to discover the target block.

The search code is split into two halves:

1. Find which block the player is targeting
2. If that block is too close, step through blocks along the look vector until there's a free spot

Unfortunately this code will miss some edge cases where a teleport could be performed, but I believe it will be enough for the vast majority of players.

Resolves #502

Checklist:

• My code follows the style guidelines of this project (.editorconfig, most IDEs will use this for you).
• I have performed a self-review of my own code.
• I have commented my code in areas it may be challenging to understand.
• I have made corresponding changes to the documentation.
• My changes are ready for review from a contributor.

[Rover656]

Code looks good - going to run it shortly to check function.
Just a requested change on a comment as I don't think it's as clear as it could be at a first glance :)
Nice work though - thanks a lot!

[Rover656]

I'm happy with how this looks - I've just rebased to update your branch and I'll merge this once the builds succeed. Nice work, thanks a lot!