Bug: Not closing HANDLE properly in multiple locations

[imdaveho]

Problem to Solve
Currently, in multiple locations:

• cursor.rs (let handle = Handle::conout()? ln 33, ln 69, ln 83, ln 93)
• mouse.rs(let handle = Handle::conin()? ln 11, ln 19)
• output.rs
• screen.rs
• style.rs
• windows/parser/mod.rs

Handle is being called but never closed. This creates multiple hanging Handles that needs to be cleaned up.

Repro

• lookup Handle:: in project to find all locations where this is the case

Tasks

• ensure that Handles are closed after requesting them in locations above
• (optional) look at #309 to modify windows input thread polling to prevent multiple calls to create Handle without closing
  • this might be able to be done by creating a single CONIN$ handle that is cleaned up properly on close