### 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)

if (k->is_action("ui_text_newline_above", true)) {
			_new_line(false, true);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_newline_blank", true)) {
			_new_line(false);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_newline", true)) {
			_new_line();
			accept_event();
			return;
		}
		
		if (k->is_action("ui_text_backspace_all_to_left", true)) {
			_do_backspace(false, true);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_backspace_word", true)) {
			_do_backspace(true);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_backspace", true)) {
			_do_backspace();
			accept_event();
			return;