### 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)

if (!is_dirty) {
		return;
	}
	max_width = -1;
	line_height = -1;
	if (font.is_valid() && font_size > 0) {
		font_height = font->get_height(font_size);
	}
	for (int i = 0; i < text.size(); i++) {
		invalidate_cache(i, -1, false);
	}
	is_dirty = false;
}
void TextEdit::Text::invalidate_all() {