### 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)

Point2i pos = get_line_column_at_pos(p_pos);
	int row = pos.y;
	int left_margin = theme_cache.style_normal->get_margin(SIDE_LEFT);
	int gutter = left_margin + gutters_width;
	if (p_pos.x < gutter) {
		for (int i = 0; i < gutters.size(); i++) {
			if (!gutters[i].draw) {
				continue;
			}
			if (p_pos.x >= left_margin && p_pos.x < left_margin + gutters[i].width) {
				if (gutters[i].clickable || is_line_gutter_clickable(row, i)) {
					return CURSOR_POINTING_HAND;
				}
			}
			left_margin += gutters[i].width;
		}
		return CURSOR_ARROW;
	}
	int xmargin_end = get_size().width - theme_cache.style_normal->get_margin(SIDE_RIGHT);
	if (draw_minimap && p_pos.x > xmargin_end - minimap_width && p_pos.x <= xmargin_end) {
		return CURSOR_ARROW;
	}
	return get_default_cursor_shape();
}
String TextEdit::get_tooltip(const Point2 &p_pos) const {