### Godot version

4.0.beta9

### System information

Linux x86_64

### Issue description

The default Next Script / Previous Script shortcuts insert angle brackets into code when switching scripts.
Presumably this affects all "modifier + printable character" shortcuts.

Workaround for next/prev script: change shortcuts to ctrl-pgup and ctrl-pgdn

### Steps to reproduce

Editor Settings > Shortcuts > ensure that Next Script / Previous Script are set to defaults.
Open any script in the script editor.
Press ctrl-shift-comma or ctrl-shift-period.

### Minimal reproduction project

N/A
file_dialog->set_file_mode(EditorFileDialog::FILE_MODE_SAVE_FILE);
	file_dialog->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
	file_dialog_option = THEME_SAVE_AS;
	file_dialog->clear_filters();
	file_dialog->add_filter("*.tet");
	file_dialog->set_current_path(EditorPaths::get_singleton()->get_text_editor_themes_dir().path_join(EDITOR_GET("text_editor/theme/color_theme")));
	file_dialog->popup_file_dialog();
	file_dialog->set_title(TTR("Save Theme As..."));
}
bool ScriptEditor::_has_docs_tab() const {
	const int child_count = tab_container->get_tab_count();
	for (int i = 0; i < child_count; i++) {
		if (Object::cast_to<EditorHelp>(tab_container->get_tab_control(i))) {
			return true;
		}
	}
	return false;
}
bool ScriptEditor::_has_script_tab() const {