message: make 'is public' checkbox visible only when creating new project, use 'is public' value when creating project (win)
diff: @@ -565,6 +565,7 @@ namespace TogglDesktop
  private void enableNewProjectMode()
  {
  + this.isProjectPublicCheckBox.Visibility = Visibility.Visible;
  this.showClientArea();
  this.projectTextBox.SetText("", "");
  @@ -587,6 +588,7 @@ namespace TogglDesktop
  private void disableNewProjectMode()
  {
  this.disableNewClientMode();
  + this.isProjectPublicCheckBox.Visibility = Visibility.Collapsed;
  this.hideClientArea();
  this.projectTextBox.SetText(this.timeEntry.ProjectLabel, this.timeEntry.TaskLabel);
  @@ -658,7 +660,7 @@ namespace TogglDesktop
  var ret = Toggl.AddProject(
  this.timeEntry.GUID, this.selectedWorkspaceId,
  this.selectedClientId, this.selectedClientGUID,
  - text, false, color) != null;
  + text, !isProjectPublicCheckBox.IsChecked.GetValueOrDefault(true), color) != null;
  this.isCreatingProject = false;
  