### 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)

ERR_FAIL_INDEX(p_from_line, text.size());
	ERR_FAIL_INDEX(p_to_line, text.size());
	if (p_from_line == p_to_line) {
		return;
	}
	for (int i = 0; i < gutters.size(); i++) {
		if (!gutters[i].overwritable) {
			continue;
		}
		if (text.get_line_gutter_text(p_from_line, i) != "") {
			text.set_line_gutter_text(p_to_line, i, text.get_line_gutter_text(p_from_line, i));
			text.set_line_gutter_item_color(p_to_line, i, text.get_line_gutter_item_color(p_from_line, i));
		}
		if (text.get_line_gutter_icon(p_from_line, i).is_valid()) {
			text.set_line_gutter_icon(p_to_line, i, text.get_line_gutter_icon(p_from_line, i));
			text.set_line_gutter_item_color(p_to_line, i, text.get_line_gutter_item_color(p_from_line, i));
		}
		if (text.get_line_gutter_metadata(p_from_line, i) != "") {
			text.set_line_gutter_metadata(p_to_line, i, text.get_line_gutter_metadata(p_from_line, i));
		}
		if (text.is_line_gutter_clickable(p_from_line, i)) {
			text.set_line_gutter_clickable(p_to_line, i, true);
		}
	}
	queue_redraw();
}
void TextEdit::set_gutter_custom_draw(int p_gutter, const Callable &p_draw_callback) {