Revert terminal memory leak fixes (#23636)

New mechanism had introduced the following regressions:

* Windows tasks are not registering child exit properly, sometimes
getting stuck in dirty state (even with
https://github.com/zed-industries/zed/pull/23631):


https://github.com/user-attachments/assets/6d406f17-aa76-4012-9c3b-be72d6d5beae

* Overall, the terminal editing started to feel more sluggish, esp. in
regards to deletions (ctrl-w and backspace), tested on macOS:


https://github.com/user-attachments/assets/3a69fe2e-e394-45e8-8f51-0f5ac396cb24


Release Notes:

- N/A

crates/repl/src/outputs/plain.rs

@@ -16,7 +16,6 @@
 //!
 
 use alacritty_terminal::{
-    event::VoidListener,
     grid::Dimensions as _,
     index::{Column, Line, Point},
     term::Config,
@@ -25,6 +24,8 @@ use alacritty_terminal::{
 use gpui::{canvas, size, ClipboardItem, FontStyle, Model, TextStyle, WhiteSpace};
 use language::Buffer;
 use settings::Settings as _;
+use std::mem;
+use terminal::ZedListener;
 use terminal_view::terminal_element::TerminalElement;
 use theme::ThemeSettings;
 use ui::{prelude::*, IntoElement};
@@ -49,7 +50,7 @@ pub struct TerminalOutput {
     /// ANSI escape sequence processor for parsing input text.
     parser: Processor,
     /// Alacritty terminal instance that manages the terminal state and content.
-    handler: alacritty_terminal::Term<VoidListener>,
+    handler: alacritty_terminal::Term<ZedListener>,
 }
 
 const DEFAULT_NUM_LINES: usize = 32;
@@ -123,9 +124,14 @@ impl TerminalOutput {
     /// and sets up the necessary components for handling terminal events and rendering.
     ///
     pub fn new(cx: &mut WindowContext) -> Self {
-        let term =
-            alacritty_terminal::Term::new(Config::default(), &terminal_size(cx), VoidListener);
+        let (events_tx, events_rx) = futures::channel::mpsc::unbounded();
+        let term = alacritty_terminal::Term::new(
+            Config::default(),
+            &terminal_size(cx),
+            terminal::ZedListener(events_tx.clone()),
+        );
 
+        mem::forget(events_rx);
         Self {
             parser: Processor::new(),
             handler: term,