### 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)

ERR_FAIL_INDEX(p_caret, carets.size());
	if (!selecting_enabled) {
		return;
	}
	p_from_line = CLAMP(p_from_line, 0, text.size() - 1);
	p_from_column = CLAMP(p_from_column, 0, text[p_from_line].length());
	p_to_line = CLAMP(p_to_line, 0, text.size() - 1);
	p_to_column = CLAMP(p_to_column, 0, text[p_to_line].length());
	carets.write[p_caret].selection.from_line = p_from_line;
	carets.write[p_caret].selection.from_column = p_from_column;
	carets.write[p_caret].selection.to_line = p_to_line;
	carets.write[p_caret].selection.to_column = p_to_column;
	carets.write[p_caret].selection.active = true;
	if (get_selection_from_line(p_caret) == get_selection_to_line(p_caret)) {
		if (get_selection_from_column(p_caret) == get_selection_to_column(p_caret)) {