### 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)

CHECK(text_edit->get_first_visible_line() == 0);
	CHECK(text_edit->get_v_scroll() == 0);
	CHECK(text_edit->get_last_full_visible_line() == visible_lines - 1);
	CHECK(text_edit->get_last_full_visible_line_wrap_index() == 0);
	text_edit->set_line_as_first_visible(visible_lines);
	MessageQueue::get_singleton()->flush();
	CHECK(text_edit->get_first_visible_line() == visible_lines);
	CHECK(text_edit->get_v_scroll() == visible_lines);
	CHECK(text_edit->get_last_full_visible_line() == (visible_lines * 2) - 1);
	CHECK(text_edit->get_last_full_visible_line_wrap_index() == 0);
	ERR_PRINT_OFF;
	text_edit->set_line_as_first_visible(-1);
	text_edit->set_line_as_first_visible(500);
	text_edit->set_line_as_first_visible(0, -1);
	text_edit->set_line_as_first_visible(0, 500);
	CHECK(text_edit->get_first_visible_line() == visible_lines);
	ERR_PRINT_ON;
	
	text_edit->set_line_wrapping_mode(TextEdit::LineWrappingMode::LINE_WRAPPING_BOUNDARY);
	MessageQueue::get_singleton()->flush();
	CHECK(text_edit->get_total_visible_line_count() > total_visible_lines);
	text_edit->set_line_as_first_visible(5, 1);
	MessageQueue::get_singleton()->flush();
	CHECK(text_edit->get_first_visible_line() == 5);
	CHECK(text_edit->get_v_scroll() == 11);
	CHECK(text_edit->get_last_full_visible_line() == visible_lines - 6);
	CHECK(text_edit->get_last_full_visible_line_wrap_index() == 1);
	
	text_edit->set_line_wrapping_mode(TextEdit::LineWrappingMode::LINE_WRAPPING_NONE);
	MessageQueue::get_singleton()->flush();