fix bug for ctrl can't use

src/window/keyboard_manager.rs

@@ -121,9 +121,11 @@ impl KeyboardManager {
             let key_text = key_event.text;
             if let Some(ori_key_text) = key_text {
                 let mut key_text = ori_key_text;
+                if self.alt {
                     if let Some(modify) = key_event.text_with_all_modifiers() {
                         key_text = modify;
                     }
+                }
                 // This is not a control key, so we rely upon winit to determine if
                 // this is a deadkey or not.
                 let keybinding_string = if let Some(escaped_text) = is_special(key_text) {