message: Minimize on Ctrl+F4 (win)
diff: <KeyBinding Key="S" Modifiers="Control" Command="{x:Static toggl:KeyboardShortcuts.Stop}" />
  <KeyBinding Key="W" Modifiers="Control" Command="{x:Static toggl:KeyboardShortcuts.Hide}" />
  + <KeyBinding Key="F4" Modifiers="Control" Command="{x:Static toggl:KeyboardShortcuts.Hide}" />
  <KeyBinding Key="R" Modifiers="Control" Command="{x:Static toggl:KeyboardShortcuts.Sync}" />
  <KeyBinding Key="E" Modifiers="Control" Command="{x:Static toggl:KeyboardShortcuts.EditRunning}" />
  