### Godot version

4.1

### System information

Windows

### Issue description

Being able to have multiple cursors similarly to vscode is a great feature, however it's only possible to add carets, not remove them. By left clicking you can remove all extra cursors but you cannot remove a specific one so after selecting multiple lines a single missclick, you have to reselect them all again. Looking at the original pr there was a remove_caret function added so it would make sense to be able to remove carets when clicking again, like in vscode.

![image](https://github.com/godotengine/godot/assets/19669673/3867c00e-9faa-4429-9c6d-f2d6d3883044)


### Steps to reproduce

- Alt click to add multiple carets
- Alt click on the same position again
- Nothing happens

### Minimal reproduction project

N/A
} else {
			v_scroll->set_step(1);
		}
		set_v_scroll(get_v_scroll());
	} else {
		first_visible_line = 0;
		first_visible_line_wrap_ofs = 0;
		v_scroll->set_value(0);
		v_scroll->set_max(0);
		v_scroll->hide();
	}
	if (total_width > visible_width) {
		h_scroll->show();
		h_scroll->set_max(total_width);
		h_scroll->set_page(visible_width);
		if (first_visible_col > (total_width - visible_width)) {
			first_visible_col = (total_width - visible_width);
		}
		if (fabs(h_scroll->get_value() - (double)first_visible_col) >= 1) {
			h_scroll->set_value(first_visible_col);
		}
	} else {
		first_visible_col = 0;
		h_scroll->set_value(0);
		h_scroll->set_max(0);
		h_scroll->hide();
	}
	updating_scrolls = false;
}
int TextEdit::_get_control_height() const {