Create settings GUI

[sfetzel]

The caption key combination as well as other settings stored in the Settings.settings should configurable.

Tasks:

1. Create a new window containing the settings.
2. Create a notification icon using hardcodet WPF tray icon. Add it to the MainWindow.
3. When you click on the notification icon, the settings window should open.
4. Create a view model for the settings window.
5. Use a text input field to get a key combination as explained in the link below.
6. Add a button to save the settings. Create a Save DelegateCommand in the viewmodel and bind it to the button command property. In the save command, copy the settings from the view model to the Settings.Default instance. Call the save method on the Settings object.

Useful links:

• Capture a key combination