### 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 (p_line < 0 || p_line >= text.size()) {
		return "";
	}
	return text[p_line];
}
int TextEdit::get_line_width(int p_line, int p_wrap_index) const {
	ERR_FAIL_INDEX_V(p_line, text.size(), 0);
	ERR_FAIL_COND_V(p_wrap_index > get_line_wrap_count(p_line), 0);
	return text.get_line_width(p_line, p_wrap_index);
}
int TextEdit::get_line_height() const {
	return MAX(text.get_line_height() + theme_cache.line_spacing, 1);
}
int TextEdit::get_indent_level(int p_line) const {
	ERR_FAIL_INDEX_V(p_line, text.size(), 0);
	int tab_count = 0;
	int whitespace_count = 0;
	int line_length = text[p_line].size();
	for (int i = 0; i < line_length - 1; i++) {
		if (text[p_line][i] == '\t') {
			tab_count++;
		} else if (text[p_line][i] == ' ') {
			whitespace_count++;
		} else {
			break;
		}
	}
	return tab_count * text.get_tab_size() + whitespace_count;
}
int TextEdit::get_first_non_whitespace_column(int p_line) const {