### Godot version

4.0 stable

### System information

Manjaro Linux, kernel 6.1.1-1-MANJARO, AMD Ryzen 5 3600, AMD RX 580

### Issue description

The `wrap_mode` property of the `TextEdit` node doesn't seem to really do anything. Setting it to `LINE_WRAPPING_BOUNDARY` simply means that there won't be an horizontal scrollbar if the text overshoots the boundary, instead of actually forcing the text to the next line so that it stays visible.

### Steps to reproduce

Create a TextEdit node and set its `wrap_mode` property to `LINE_WRAPPING_BOUNDARY`

### Minimal reproduction project

[WrapBugDemo.zip](https://github.com/godotengine/godot/files/10875969/WrapBugDemo.zip)

return text[p_line].data;
}
void TextEdit::Text::_calculate_line_height() {
	int height = 0;
	for (const Line &l : text) {
		
		if (l.height == line_height) {
			height = line_height;
			break;
		}
		height = MAX(height, l.height);
	}
	line_height = height;
}
void TextEdit::Text::_calculate_max_line_width() {
	int line_width = 0;
	for (const Line &l : text) {
		if (l.hidden) {
			continue;
		}
		
		if (l.width == max_width) {
			line_width = max_width;
			break;
		}
		line_width = MAX(line_width, l.width);
	}
	max_width = line_width;
}
void TextEdit::Text::invalidate_cache(int p_line, int p_column, bool p_text_changed, const String &p_ime_text, const Array &p_bidi_override) {