### 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
ClassDB::bind_method(D_METHOD("get_line_wrap_count", "line"), &TextEdit::get_line_wrap_count);
	ClassDB::bind_method(D_METHOD("get_line_wrap_index_at_column", "line", "column"), &TextEdit::get_line_wrap_index_at_column);
	ClassDB::bind_method(D_METHOD("get_line_wrapped_text", "line"), &TextEdit::get_line_wrapped_text);
	
	
	ClassDB::bind_method(D_METHOD("set_smooth_scroll_enabled", "enable"), &TextEdit::set_smooth_scroll_enabled);
	ClassDB::bind_method(D_METHOD("is_smooth_scroll_enabled"), &TextEdit::is_smooth_scroll_enabled);
	ClassDB::bind_method(D_METHOD("get_v_scroll_bar"), &TextEdit::get_v_scroll_bar);
	ClassDB::bind_method(D_METHOD("get_h_scroll_bar"), &TextEdit::get_h_scroll_bar);
	ClassDB::bind_method(D_METHOD("set_v_scroll", "value"), &TextEdit::set_v_scroll);
	ClassDB::bind_method(D_METHOD("get_v_scroll"), &TextEdit::get_v_scroll);
	ClassDB::bind_method(D_METHOD("set_h_scroll", "value"), &TextEdit::set_h_scroll);
	ClassDB::bind_method(D_METHOD("get_h_scroll"), &TextEdit::get_h_scroll);
	ClassDB::bind_method(D_METHOD("set_scroll_past_end_of_file_enabled", "enable"), &TextEdit::set_scroll_past_end_of_file_enabled);
	ClassDB::bind_method(D_METHOD("is_scroll_past_end_of_file_enabled"), &TextEdit::is_scroll_past_end_of_file_enabled);
	ClassDB::bind_method(D_METHOD("set_v_scroll_speed", "speed"), &TextEdit::set_v_scroll_speed);
	ClassDB::bind_method(D_METHOD("get_v_scroll_speed"), &TextEdit::get_v_scroll_speed);
	ClassDB::bind_method(D_METHOD("set_fit_content_height_enabled", "enabled"), &TextEdit::set_fit_content_height_enabled);
	ClassDB::bind_method(D_METHOD("is_fit_content_height_enabled"), &TextEdit::is_fit_content_height_enabled);
	ClassDB::bind_method(D_METHOD("get_scroll_pos_for_line", "line", "wrap_index"), &TextEdit::get_scroll_pos_for_line, DEFVAL(0));
	
	ClassDB::bind_method(D_METHOD("set_line_as_first_visible", "line", "wrap_index"), &TextEdit::set_line_as_first_visible, DEFVAL(0));
	ClassDB::bind_method(D_METHOD("get_first_visible_line"), &TextEdit::get_first_visible_line);
	ClassDB::bind_method(D_METHOD("set_line_as_center_visible", "line", "wrap_index"), &TextEdit::set_line_as_center_visible, DEFVAL(0));
	ClassDB::bind_method(D_METHOD("set_line_as_last_visible", "line", "wrap_index"), &TextEdit::set_line_as_last_visible, DEFVAL(0));
	ClassDB::bind_method(D_METHOD("get_last_full_visible_line"), &TextEdit::get_last_full_visible_line);
	ClassDB::bind_method(D_METHOD("get_last_full_visible_line_wrap_index"), &TextEdit::get_last_full_visible_line_wrap_index);
	ClassDB::bind_method(D_METHOD("get_visible_line_count"), &TextEdit::get_visible_line_count);
	ClassDB::bind_method(D_METHOD("get_visible_line_count_in_range", "from_line", "to_line"), &TextEdit::get_visible_line_count_in_range);
	ClassDB::bind_method(D_METHOD("get_total_visible_line_count"), &TextEdit::get_total_visible_line_count);