Fix bug with IME

Adjust how IME works in the terminal

co-authored-by: nathan <nathan@zed.dev>

crates/gpui2/src/platform/mac/window.rs

@@ -750,6 +750,10 @@ impl PlatformWindow for MacWindow {
         self.0.as_ref().lock().input_handler = Some(input_handler);
     }
 
+    fn clear_input_handler(&mut self) {
+        self.0.as_ref().lock().input_handler = None;
+    }
+
     fn prompt(&self, level: PromptLevel, msg: &str, answers: &[&str]) -> oneshot::Receiver<usize> {
         // macOs applies overrides to modal window buttons after they are added.
         // Two most important for this logic are:

crates/gpui2/src/platform/test/window.rs

@@ -89,6 +89,10 @@ impl PlatformWindow for TestWindow {
         self.input_handler = Some(Arc::new(Mutex::new(input_handler)));
     }
 
+    fn clear_input_handler(&mut self) {
+        self.input_handler = None;
+    }
+
     fn prompt(
         &self,
         _level: crate::PromptLevel,