✨ [Improvement] don't hardcode path to bash

[jhheider]

While it's true that /bin/bash in compiler.rs is a nearly foolproof method, certain environment managers, like pkgx, may provide bash on a system on which it is not otherwise globally installed. Either trusting the path, or calling /usr/bin/env bash -c ... allows for a wider variety of supported shells.

Extremely minor issue, to be sure, but something I came across while packaging the compiler.

[sweetbbak]

Yea, this will also fail on NixOS, whereas '#!/usr/bin/env bash' will not. env being the only binary accessible in /usr/bin on NixOS.

[Ph0enixKM]

@sweetbbak this issue will be solved in #110 (review)