message: Prevent possible crash when emptyActivityLbl is not yet loaded (mac)
  It possibly fixes the EXC_BAD_INSTRUCTION crash reported on Bugsnug.
  Need to approve if it fixed the crash after the release.
diff: @@ -21,7 +21,11 @@ final class TimelineDashboardViewController: NSViewController {
  @IBOutlet weak var recordSwitcher: OGSwitch!
  @IBOutlet weak var collectionView: TimelineCollectionView!
  @IBOutlet weak var emptyLbl: NSTextField!
  - @IBOutlet weak var emptyActivityLbl: NSTextField!
  + @IBOutlet weak var emptyActivityLbl: NSTextField! {
  + didSet {
  + emptyActivityLbl.frameCenterRotation = -90
  + }
  + }
  @IBOutlet weak var emptyActivityLblPadding: NSLayoutConstraint!
  @IBOutlet weak var zoomContainerView: NSView!
  @IBOutlet weak var collectionViewContainerView: NSView!
  @@ -269,7 +273,6 @@ extension TimelineDashboardViewController {
  datePickerView.edgesToSuperView()
  datePickerView.delegate = self
  datePickerView.setBackgroundForTimeline()
  - emptyActivityLbl.frameCenterRotation = -90
  // Forect Render the view
  _ = activityHoverController.view
  