Allow loading key file from command line without unlocking

Overview

Issue #105 describes that it should be possible to silently start with a locked database if you configure to start minimized, and to hide to system tray when minimized.

Unfortunately, this only works if I enable remembering database and keyfile. It does not work if I want to launch the app via command line parameters.

Steps to Reproduce

1. Configure keepassxc to start minimized and to hide to systemtray when minimzed
2. Configure keepassxc to not remember databases or keyfiles
3. Launch application with command line parameters: keepassxc --keyfile

Expected Behavior

keepassxc launches silently into the system tray

Actual Behavior

keepassxc complains that no password was given

KeePassXC - Version 2.6.4 Revision: 34a78f0

Operating System: Windows 10 Version 2009