repl: Create better terminal output for REPL stdio (#15715)

Rely on our implementation of a GPUI powered alacritty terminal to
render stdout & stderr from the repl.

Release Notes:

- Fixed ANSI escape code and carriage return handling in repl outputs
(https://github.com/zed-industries/zed/issues/15640,
https://github.com/zed-industries/zed/issues/14855)


https://github.com/user-attachments/assets/bd3f1584-863a-4afa-b60b-9d222a830ff8

---------

Co-authored-by: Mikayla <mikayla@zed.dev>

crates/terminal/src/terminal.rs

@@ -142,7 +142,7 @@ enum InternalEvent {
 
 ///A translation struct for Alacritty to communicate with us from their event loop
 #[derive(Clone)]
-pub struct ZedListener(UnboundedSender<AlacTermEvent>);
+pub struct ZedListener(pub UnboundedSender<AlacTermEvent>);
 
 impl EventListener for ZedListener {
     fn send_event(&self, event: AlacTermEvent) {