Existing LD_LIBRARY_PATH is discarded by CLI

[PgBiel]

Hey,

I've noticed that the FireDBG CLI, in run_debugger, seems to discard the existing LD_LIBRARY_PATH that the firedbg CLI itself received:

FireDBG.for.Rust/command/src/main.rs

Lines 815 to 821 in a88c160

	let lib_path = format!("{home}/firedbg-lib/lib");
	if cfg!(target_os = "linux") {
	command.env("LD_LIBRARY_PATH", lib_path);
	} else if cfg!(target_os = "macos") {
	command.env("DYLD_FALLBACK_LIBRARY_PATH", lib_path);
	}
	command

This leads to the debugger not being able to launch as its dynamic libraries are not available, even though I made them available through the use of a dev environment (in my case, nix-shell) which overrides LD_LIBRARY_PATH to work. Manually copying and pasting the command that the CLI used to launch firedbg-debugger in my terminal without the LD_LIBRARY_PATH override works.

To fix this, LD_LIBRARY_PATH should be set to the equivalent of (in shell syntax for clarity)

export LD_LIBRARY_PATH="${CARGO_HOME}/firedbg-lib/lib:${LD_LIBRARY_PATH}"

That is, append the desired library search path to the search path given to the CLI.