Fix bug with IME

Adjust how IME works in the terminal

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

crates/gpui2/src/window.rs

@@ -1231,6 +1231,7 @@ impl<'a> WindowContext<'a> {
     /// Rotate the current frame and the previous frame, then clear the current frame.
     /// We repopulate all state in the current frame during each paint.
     fn start_frame(&mut self) {
+        self.window.platform_window.clear_input_handler();
         self.text_system().start_frame();
 
         let window = &mut *self.window;