Figure out what to do about `std::string` vs `QString`

[tetsuo-cpp]

Not sure what the "proper" way to handle this is so I'll have to do a bit of research. There are multiple spots in the code where I'm having to convert between these two types since they're not interoperable which is just wasted copying all over the place.

We'll have to address this at some point and figure out what string type to use and where.