### 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)

int control_height = get_size().height;
	control_height -= theme_cache.style_normal->get_minimum_size().height;
	if (h_scroll->is_visible_in_tree()) {
		control_height -= h_scroll->get_size().height;
	}
	return control_height;
}
void TextEdit::_v_scroll_input() {
	scrolling = false;
	minimap_clicked = false;
}
void TextEdit::_scroll_moved(double p_to_val) {
	if (updating_scrolls) {
		return;
	}
	if (h_scroll->is_visible_in_tree()) {
		first_visible_col = h_scroll->get_value();
	}
	if (v_scroll->is_visible_in_tree()) {