Converts the vehicle stored client side from a raw string to parsed json
data. This allows us to more easily edit the vehicle state serverside,
which I've started using in this PR for updating the state after a paint
packet.
---
By creating this pull request, I understand that code that is AI
generated or otherwise automatically generated may be rejected without
further discussion.
I declare that I fully understand all code I pushed into this PR, and
wrote all this code myself and own the rights to this code.