Do not close the software, but keep it in the background for quicker display

[Chouffy]

Is your feature request related to a problem? Please describe. Currently, it takes 2~3 seconds to pull up EFCK keyboard from shortcut. The Windows Emoji (Win+.) is almost instantaneous.

Describe the solution you'd like Keep EFCK waiting in the background (in the systray?), so it is shown >1 sec after typing the keyboard shortcut.

Sorry for my flood of requests, but I really like this software :)