### 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 st_args;
}
void TextEdit::set_tab_size(const int p_size) {
	ERR_FAIL_COND_MSG(p_size <= 0, "Tab size must be greater than 0.");
	if (p_size == text.get_tab_size()) {
		return;
	}
	text.set_tab_size(p_size);
	text.invalidate_all_lines();
	_update_placeholder();
	queue_redraw();
}
int TextEdit::get_tab_size() const {
	return text.get_tab_size();
}
void TextEdit::set_overtype_mode_enabled(const bool p_enabled) {
	if (overtype_mode == p_enabled) {
		return;
	}
	overtype_mode = p_enabled;
	queue_redraw();
}
bool TextEdit::is_overtype_mode_enabled() const {
	return overtype_mode;
}
void TextEdit::set_context_menu_enabled(bool p_enabled) {