### 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
context_menu_enabled = p_enabled;
}
bool TextEdit::is_context_menu_enabled() const {
	return context_menu_enabled;
}
void TextEdit::set_shortcut_keys_enabled(bool p_enabled) {
	shortcut_keys_enabled = p_enabled;
}
bool TextEdit::is_shortcut_keys_enabled() const {
	return shortcut_keys_enabled;
}
void TextEdit::set_virtual_keyboard_enabled(bool p_enabled) {
	virtual_keyboard_enabled = p_enabled;
}
bool TextEdit::is_virtual_keyboard_enabled() const {
	return virtual_keyboard_enabled;
}
void TextEdit::set_middle_mouse_paste_enabled(bool p_enabled) {
	middle_mouse_paste_enabled = p_enabled;
}
bool TextEdit::is_middle_mouse_paste_enabled() const {
	return middle_mouse_paste_enabled;
}
void TextEdit::clear() {
	setting_text = true;
	_clear();
	setting_text = false;
	emit_signal(SNAME("text_set"));
}
void TextEdit::_clear() {