### Godot version

Godot 4.0 statble

### System information

Windows 10

### Issue description

TextEdit boundary wrapmode not works, it only removes the horizontal scrollbar

### Steps to reproduce

Add a textedit in editor, set  the wrap mode to boundary, type something.

### Minimal reproduction project

![image](https://user-images.githubusercontent.com/9168814/224538077-2efb4e67-8976-496e-9223-c460365ecc28.png)
![image](https://user-images.githubusercontent.com/9168814/224538084-af773b86-d73a-4e8b-9b66-a0fb4bde1168.png)

int final_line = text_editor->get_line_count() - 1;
	String line = text_editor->get_line(final_line);
	
	if (line.length() > 0 && !line.ends_with("\n")) {
		text_editor->begin_complex_operation();
		line += "\n";
		text_editor->set_line(final_line, line);
		text_editor->end_complex_operation();
		text_editor->queue_redraw();
	}
}
void CodeTextEditor::convert_case(CaseStyle p_case) {
	if (!text_editor->has_selection()) {
		return;
	}
	text_editor->begin_complex_operation();
	Vector<int> caret_edit_order = text_editor->get_caret_index_edit_order();
	for (const int &c : caret_edit_order) {
		if (!text_editor->has_selection(c)) {
			continue;
		}
		int begin = text_editor->get_selection_from_line(c);
		int end = text_editor->get_selection_to_line(c);
		int begin_col = text_editor->get_selection_from_column(c);
		int end_col = text_editor->get_selection_to_column(c);
		for (int i = begin; i <= end; i++) {
			int len = text_editor->get_line(i).length();