### 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 tab_size;
}
void TextEdit::Text::set_direction_and_language(TextServer::Direction p_direction, const String &p_language) {
	if (direction == p_direction && language == p_language) {
		return;
	}
	direction = p_direction;
	language = p_language;
	is_dirty = true;
}
void TextEdit::Text::set_draw_control_chars(bool p_enabled) {
	if (draw_control_chars == p_enabled) {
		return;
	}
	draw_control_chars = p_enabled;
	is_dirty = true;
}
int TextEdit::Text::get_line_width(int p_line, int p_wrap_index) const {
	ERR_FAIL_INDEX_V(p_line, text.size(), 0);
	if (p_wrap_index != -1) {
		return text[p_line].data_buf->get_line_width(p_wrap_index);
	}
	return text[p_line].data_buf->get_size().x;
}
int TextEdit::Text::get_line_height() const {