### Godot version

v4.1.beta.custom_build [d3651ea45]

### System information

Windows 11

### Issue description

![1](https://github.com/godotengine/godot/assets/28705694/15c14c93-7ad7-425a-8fb0-bef841b75527)

It's not possible to start text selection on a SpinBox when it's unfocused.

Note: After a bit of digging in the code, I found that clicking on a SpintBox doesn't trigger `SpinBox::gui_input` no matter if it's focused or not. However, releasing mouse left button does trigger the function.

### Steps to reproduce

See the gif.

### Minimal reproduction project

It's simple to reproduce.
line_edit = memnew(LineEdit);
	add_child(line_edit, false, INTERNAL_MODE_FRONT);
	line_edit->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT);
	line_edit->set_mouse_filter(MOUSE_FILTER_PASS);
	line_edit->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_LEFT);
	line_edit->connect("text_submitted", callable_mp(this, &SpinBox::_text_submitted), CONNECT_DEFERRED);
	line_edit->connect("focus_entered", callable_mp(this, &SpinBox::_line_edit_focus_enter), CONNECT_DEFERRED);
	line_edit->connect("focus_exited", callable_mp(this, &SpinBox::_line_edit_focus_exit), CONNECT_DEFERRED);
	line_edit->connect("gui_input", callable_mp(this, &SpinBox::_line_edit_input));
	range_click_timer = memnew(Timer);
	range_click_timer->connect("timeout", callable_mp(this, &SpinBox::_range_click_timeout));
	add_child(range_click_timer, false, INTERNAL_MODE_FRONT);
}