### 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
_update_wrap_at_column(true);
			}
		} break;
		case NOTIFICATION_WM_WINDOW_FOCUS_IN: {
			window_has_focus = true;
			draw_caret = true;
			queue_redraw();
		} break;
		case NOTIFICATION_WM_WINDOW_FOCUS_OUT: {
			window_has_focus = false;
			draw_caret = false;
			queue_redraw();
		} break;
		case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
			if (scrolling && get_v_scroll() != target_v_scroll) {
				double target_y = target_v_scroll - get_v_scroll();
				double dist = abs(target_y);
				
				double vel = ((target_y / dist) * ((minimap_clicked) ? 3000 : v_scroll_speed)) * get_physics_process_delta_time();
				
				if (Math::abs(vel) < v_scroll->get_step()) {
					vel = v_scroll->get_step() * SIGN(vel);
				}
				if (Math::abs(vel) >= dist) {
					set_v_scroll(target_v_scroll);
					scrolling = false;
					minimap_clicked = false;
					set_physics_process_internal(false);
				} else {
					set_v_scroll(get_v_scroll() + vel);