### 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
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) {