message: Change some default keybindings
  Closes
  Changes New Tab to Ctrl+Shift+t (from Ctrl+t)
  Changes SwitchToTabN to Ctrl+Alt+<number> (from Alt+<number>)
diff: @@ -277,11 +277,9 @@ void CascadiaSettings::_CreateDefaultProfiles()
  void CascadiaSettings::_CreateDefaultKeybindings()
  {
  AppKeyBindings keyBindings = _globals.GetKeybindings();
  - // Set up spme basic default keybindings
  - // TODO:MSFT:20700157 read our settings from some source, and configure
  - // keychord,action pairings from that file
  + // Set up some basic default keybindings
  keyBindings.SetKeyBinding(ShortcutAction::NewTab,
  - KeyChord{ KeyModifiers::Ctrl,
  + KeyChord{ KeyModifiers::Ctrl | KeyModifiers::Shift,
  static_cast<int>('T') });
  keyBindings.SetKeyBinding(ShortcutAction::DuplicateTab,
  KeyChord{ KeyModifiers::Ctrl | KeyModifiers::Shift,
  @@ -354,31 +352,31 @@ void CascadiaSettings::_CreateDefaultKeybindings()
  KeyChord{ KeyModifiers::Ctrl | KeyModifiers::Shift,
  VK_PRIOR });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab0,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('1') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab1,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('2') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab2,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('3') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab3,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('4') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab4,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('5') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab5,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('6') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab6,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('7') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab7,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('8') });
  keyBindings.SetKeyBinding(ShortcutAction::SwitchToTab8,
  - KeyChord{ KeyModifiers::Alt,
  + KeyChord{ KeyModifiers::Alt | KeyModifiers::Ctrl,
  static_cast<int>('9') });
  }
  